Home / 80,449,130.90-111,031,753.04-47,398,815.11

Finding the Fourth Proportional to 80,449,130.90, 111,031,753.04 and 47,398,815.11

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Solution

The fourth proportional to 80,449,130.90, 111,031,753.04 and 47,398,815.11 is: 65,417,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449,130.90 : 111,031,753.04 = 47,398,815.11 : x
  2. Step 2: Convert to fraction form
    80,449,130.90/111,031,753.04 = 47,398,815.11/x
  3. Step 3: Cross multiply
    80,449,130.90x = 111,031,753.04 × 47,398,815.11
  4. Step 4: Simplify right side
    80,449,130.90x = 5,262,773,532,889,987
  5. Step 5: Solve for x
    x = 5,262,773,532,889,987/80,449,130.90
  6. Step 6: Final answer
    x = 65,417,406.93

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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.