Home / 13,013,355.27-19,403,690.16-12,655,823.66

Finding the Fourth Proportional to 13,013,355.27, 19,403,690.16 and 12,655,823.66

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Solution

The fourth proportional to 13,013,355.27, 19,403,690.16 and 12,655,823.66 is: 18,870,589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,355.27 : 19,403,690.16 = 12,655,823.66 : x
  2. Step 2: Convert to fraction form
    13,013,355.27/19,403,690.16 = 12,655,823.66/x
  3. Step 3: Cross multiply
    13,013,355.27x = 19,403,690.16 × 12,655,823.66
  4. Step 4: Simplify right side
    13,013,355.27x = 245,569,681,098,385.97
  5. Step 5: Solve for x
    x = 245,569,681,098,385.97/13,013,355.27
  6. Step 6: Final answer
    x = 18,870,589.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.