Home / 66,387,092.31-91,602,756.80-42,565,551.78

Finding the Fourth Proportional to 66,387,092.31, 91,602,756.80 and 42,565,551.78

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Solution

The fourth proportional to 66,387,092.31, 91,602,756.80 and 42,565,551.78 is: 58,733,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,387,092.31 : 91,602,756.80 = 42,565,551.78 : x
  2. Step 2: Convert to fraction form
    66,387,092.31/91,602,756.80 = 42,565,551.78/x
  3. Step 3: Cross multiply
    66,387,092.31x = 91,602,756.80 × 42,565,551.78
  4. Step 4: Simplify right side
    66,387,092.31x = 3,899,121,888,051,450
  5. Step 5: Solve for x
    x = 3,899,121,888,051,450/66,387,092.31
  6. Step 6: Final answer
    x = 58,733,132.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.