Home / 12,387,000.90-18,580,501.35-3,289,080.90

Finding the Fourth Proportional to 12,387,000.90, 18,580,501.35 and 3,289,080.90

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Solution

The fourth proportional to 12,387,000.90, 18,580,501.35 and 3,289,080.90 is: 4,933,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,000.90 : 18,580,501.35 = 3,289,080.90 : x
  2. Step 2: Convert to fraction form
    12,387,000.90/18,580,501.35 = 3,289,080.90/x
  3. Step 3: Cross multiply
    12,387,000.90x = 18,580,501.35 × 3,289,080.90
  4. Step 4: Simplify right side
    12,387,000.90x = 61,112,772,102,709.22
  5. Step 5: Solve for x
    x = 61,112,772,102,709.22/12,387,000.90
  6. Step 6: Final answer
    x = 4,933,621.35

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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.