Home / 81,870,487.59-122,432,726.16-61,135,486.59

Finding the Fourth Proportional to 81,870,487.59, 122,432,726.16 and 61,135,486.59

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Solution

The fourth proportional to 81,870,487.59, 122,432,726.16 and 61,135,486.59 is: 91,424,694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,870,487.59 : 122,432,726.16 = 61,135,486.59 : x
  2. Step 2: Convert to fraction form
    81,870,487.59/122,432,726.16 = 61,135,486.59/x
  3. Step 3: Cross multiply
    81,870,487.59x = 122,432,726.16 × 61,135,486.59
  4. Step 4: Simplify right side
    81,870,487.59x = 7,484,984,288,331,822
  5. Step 5: Solve for x
    x = 7,484,984,288,331,822/81,870,487.59
  6. Step 6: Final answer
    x = 91,424,694.16

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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.