Home / 66,438,005.10-99,657,007.65-61,063,233.90

Finding the Fourth Proportional to 66,438,005.10, 99,657,007.65 and 61,063,233.90

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Solution

The fourth proportional to 66,438,005.10, 99,657,007.65 and 61,063,233.90 is: 91,594,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438,005.10 : 99,657,007.65 = 61,063,233.90 : x
  2. Step 2: Convert to fraction form
    66,438,005.10/99,657,007.65 = 61,063,233.90/x
  3. Step 3: Cross multiply
    66,438,005.10x = 99,657,007.65 × 61,063,233.90
  4. Step 4: Simplify right side
    66,438,005.10x = 6,085,379,167,906,040
  5. Step 5: Solve for x
    x = 6,085,379,167,906,040/66,438,005.10
  6. Step 6: Final answer
    x = 91,594,850.85

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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.