Home / 159,653,999.70-239,480,999.55-142,435,311.30

Finding the Fourth Proportional to 159,653,999.70, 239,480,999.55 and 142,435,311.30

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Solution

The fourth proportional to 159,653,999.70, 239,480,999.55 and 142,435,311.30 is: 213,652,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,653,999.70 : 239,480,999.55 = 142,435,311.30 : x
  2. Step 2: Convert to fraction form
    159,653,999.70/239,480,999.55 = 142,435,311.30/x
  3. Step 3: Cross multiply
    159,653,999.70x = 239,480,999.55 × 142,435,311.30
  4. Step 4: Simplify right side
    159,653,999.70x = 34,110,550,721,339,416
  5. Step 5: Solve for x
    x = 34,110,550,721,339,416/159,653,999.70
  6. Step 6: Final answer
    x = 213,652,966.95

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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.