Home / 142,478,134.20-213,717,201.30-97,128,502.20

Finding the Fourth Proportional to 142,478,134.20, 213,717,201.30 and 97,128,502.20

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Solution

The fourth proportional to 142,478,134.20, 213,717,201.30 and 97,128,502.20 is: 145,692,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,478,134.20 : 213,717,201.30 = 97,128,502.20 : x
  2. Step 2: Convert to fraction form
    142,478,134.20/213,717,201.30 = 97,128,502.20/x
  3. Step 3: Cross multiply
    142,478,134.20x = 213,717,201.30 × 97,128,502.20
  4. Step 4: Simplify right side
    142,478,134.20x = 20,758,031,656,644,896
  5. Step 5: Solve for x
    x = 20,758,031,656,644,896/142,478,134.20
  6. Step 6: Final answer
    x = 145,692,753.30

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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.