Home / 899,181,028.80-1,348,771,543.20-860,438,979.90

Finding the Fourth Proportional to 899,181,028.80, 1,348,771,543.20 and 860,438,979.90

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Solution

The fourth proportional to 899,181,028.80, 1,348,771,543.20 and 860,438,979.90 is: 1,290,658,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,181,028.80 : 1,348,771,543.20 = 860,438,979.90 : x
  2. Step 2: Convert to fraction form
    899,181,028.80/1,348,771,543.20 = 860,438,979.90/x
  3. Step 3: Cross multiply
    899,181,028.80x = 1,348,771,543.20 × 860,438,979.90
  4. Step 4: Simplify right side
    899,181,028.80x = 1,160,535,610,749,156,864
  5. Step 5: Solve for x
    x = 1,160,535,610,749,156,864/899,181,028.80
  6. Step 6: Final answer
    x = 1,290,658,469.85

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Double scale
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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.