Home / 74,766,643.80-112,149,965.70-42,406,042.20

Finding the Fourth Proportional to 74,766,643.80, 112,149,965.70 and 42,406,042.20

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Solution

The fourth proportional to 74,766,643.80, 112,149,965.70 and 42,406,042.20 is: 63,609,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,766,643.80 : 112,149,965.70 = 42,406,042.20 : x
  2. Step 2: Convert to fraction form
    74,766,643.80/112,149,965.70 = 42,406,042.20/x
  3. Step 3: Cross multiply
    74,766,643.80x = 112,149,965.70 × 42,406,042.20
  4. Step 4: Simplify right side
    74,766,643.80x = 4,755,836,178,202,753
  5. Step 5: Solve for x
    x = 4,755,836,178,202,753/74,766,643.80
  6. Step 6: Final answer
    x = 63,609,063.30

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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.