Home / 155,930,945.22-234,126,346.02-86,978,468.37

Finding the Fourth Proportional to 155,930,945.22, 234,126,346.02 and 86,978,468.37

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Solution

The fourth proportional to 155,930,945.22, 234,126,346.02 and 86,978,468.37 is: 130,595,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,930,945.22 : 234,126,346.02 = 86,978,468.37 : x
  2. Step 2: Convert to fraction form
    155,930,945.22/234,126,346.02 = 86,978,468.37/x
  3. Step 3: Cross multiply
    155,930,945.22x = 234,126,346.02 × 86,978,468.37
  4. Step 4: Simplify right side
    155,930,945.22x = 20,363,950,981,449,352
  5. Step 5: Solve for x
    x = 20,363,950,981,449,352/155,930,945.22
  6. Step 6: Final answer
    x = 130,595,956.78

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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.