Home / 152,455,644.28-210,390,121.20-82,841,023.72

Finding the Fourth Proportional to 152,455,644.28, 210,390,121.20 and 82,841,023.72

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Solution

The fourth proportional to 152,455,644.28, 210,390,121.20 and 82,841,023.72 is: 114,321,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,455,644.28 : 210,390,121.20 = 82,841,023.72 : x
  2. Step 2: Convert to fraction form
    152,455,644.28/210,390,121.20 = 82,841,023.72/x
  3. Step 3: Cross multiply
    152,455,644.28x = 210,390,121.20 × 82,841,023.72
  4. Step 4: Simplify right side
    152,455,644.28x = 17,428,933,020,782,874
  5. Step 5: Solve for x
    x = 17,428,933,020,782,874/152,455,644.28
  6. Step 6: Final answer
    x = 114,321,336.56

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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.