Home / 142,027,590.40-212,853,053.76-72,937,602.88

Finding the Fourth Proportional to 142,027,590.40, 212,853,053.76 and 72,937,602.88

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Solution

The fourth proportional to 142,027,590.40, 212,853,053.76 and 72,937,602.88 is: 109,309,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,027,590.40 : 212,853,053.76 = 72,937,602.88 : x
  2. Step 2: Convert to fraction form
    142,027,590.40/212,853,053.76 = 72,937,602.88/x
  3. Step 3: Cross multiply
    142,027,590.40x = 212,853,053.76 × 72,937,602.88
  4. Step 4: Simplify right side
    142,027,590.40x = 15,524,991,506,942,170
  5. Step 5: Solve for x
    x = 15,524,991,506,942,170/142,027,590.40
  6. Step 6: Final answer
    x = 109,309,687.39

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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.