Home / 12,302,428.10-18,453,642.15-8,712,248.90

Finding the Fourth Proportional to 12,302,428.10, 18,453,642.15 and 8,712,248.90

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Solution

The fourth proportional to 12,302,428.10, 18,453,642.15 and 8,712,248.90 is: 13,068,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,428.10 : 18,453,642.15 = 8,712,248.90 : x
  2. Step 2: Convert to fraction form
    12,302,428.10/18,453,642.15 = 8,712,248.90/x
  3. Step 3: Cross multiply
    12,302,428.10x = 18,453,642.15 × 8,712,248.90
  4. Step 4: Simplify right side
    12,302,428.10x = 160,772,723,522,331.12
  5. Step 5: Solve for x
    x = 160,772,723,522,331.12/12,302,428.10
  6. Step 6: Final answer
    x = 13,068,373.35

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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.