Home / 66,384,160.80-99,657,111.60-42,123,040.80

Finding the Fourth Proportional to 66,384,160.80, 99,657,111.60 and 42,123,040.80

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Solution

The fourth proportional to 66,384,160.80, 99,657,111.60 and 42,123,040.80 is: 63,235,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384,160.80 : 99,657,111.60 = 42,123,040.80 : x
  2. Step 2: Convert to fraction form
    66,384,160.80/99,657,111.60 = 42,123,040.80/x
  3. Step 3: Cross multiply
    66,384,160.80x = 99,657,111.60 × 42,123,040.80
  4. Step 4: Simplify right side
    66,384,160.80x = 4,197,860,577,936,952.50
  5. Step 5: Solve for x
    x = 4,197,860,577,936,952.50/66,384,160.80
  6. Step 6: Final answer
    x = 63,235,876.26

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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.