Home / 6,480,038.10-9,720,057.15-3,929,121.30

Finding the Fourth Proportional to 6,480,038.10, 9,720,057.15 and 3,929,121.30

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Solution

The fourth proportional to 6,480,038.10, 9,720,057.15 and 3,929,121.30 is: 5,893,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,038.10 : 9,720,057.15 = 3,929,121.30 : x
  2. Step 2: Convert to fraction form
    6,480,038.10/9,720,057.15 = 3,929,121.30/x
  3. Step 3: Cross multiply
    6,480,038.10x = 9,720,057.15 × 3,929,121.30
  4. Step 4: Simplify right side
    6,480,038.10x = 38,191,283,585,282.30
  5. Step 5: Solve for x
    x = 38,191,283,585,282.30/6,480,038.10
  6. Step 6: Final answer
    x = 5,893,681.95

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Double scale
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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.