Home / 1,347,520,147.40-2,021,280,221.10-657,072,000.20

Finding the Fourth Proportional to 1,347,520,147.40, 2,021,280,221.10 and 657,072,000.20

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Solution

The fourth proportional to 1,347,520,147.40, 2,021,280,221.10 and 657,072,000.20 is: 985,608,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,520,147.40 : 2,021,280,221.10 = 657,072,000.20 : x
  2. Step 2: Convert to fraction form
    1,347,520,147.40/2,021,280,221.10 = 657,072,000.20/x
  3. Step 3: Cross multiply
    1,347,520,147.40x = 2,021,280,221.10 × 657,072,000.20
  4. Step 4: Simplify right side
    1,347,520,147.40x = 1,328,126,637,842,875,392
  5. Step 5: Solve for x
    x = 1,328,126,637,842,875,392/1,347,520,147.40
  6. Step 6: Final answer
    x = 985,608,000.30

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Half scale
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Double scale
Find fourth proportional to 1,347,520,148.40, 2,021,280,222.60 and 657,072,001.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.