Home / 8,187,761.40-12,281,642.10-5,158,547.70

Finding the Fourth Proportional to 8,187,761.40, 12,281,642.10 and 5,158,547.70

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Solution

The fourth proportional to 8,187,761.40, 12,281,642.10 and 5,158,547.70 is: 7,737,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187,761.40 : 12,281,642.10 = 5,158,547.70 : x
  2. Step 2: Convert to fraction form
    8,187,761.40/12,281,642.10 = 5,158,547.70/x
  3. Step 3: Cross multiply
    8,187,761.40x = 12,281,642.10 × 5,158,547.70
  4. Step 4: Simplify right side
    8,187,761.40x = 63,355,436,607,178.17
  5. Step 5: Solve for x
    x = 63,355,436,607,178.17/8,187,761.40
  6. Step 6: Final answer
    x = 7,737,821.55

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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.