Home / 71,748,042.32-99,015,433.91-40,388,114.88

Finding the Fourth Proportional to 71,748,042.32, 99,015,433.91 and 40,388,114.88

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Solution

The fourth proportional to 71,748,042.32, 99,015,433.91 and 40,388,114.88 is: 55,737,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,748,042.32 : 99,015,433.91 = 40,388,114.88 : x
  2. Step 2: Convert to fraction form
    71,748,042.32/99,015,433.91 = 40,388,114.88/x
  3. Step 3: Cross multiply
    71,748,042.32x = 99,015,433.91 × 40,388,114.88
  4. Step 4: Simplify right side
    71,748,042.32x = 3,999,046,719,054,080
  5. Step 5: Solve for x
    x = 3,999,046,719,054,080/71,748,042.32
  6. Step 6: Final answer
    x = 55,737,363.55

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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.