Home / 159,217,920.83-238,917,890.51-86,440,618.82

Finding the Fourth Proportional to 159,217,920.83, 238,917,890.51 and 86,440,618.82

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Solution

The fourth proportional to 159,217,920.83, 238,917,890.51 and 86,440,618.82 is: 129,710,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,217,920.83 : 238,917,890.51 = 86,440,618.82 : x
  2. Step 2: Convert to fraction form
    159,217,920.83/238,917,890.51 = 86,440,618.82/x
  3. Step 3: Cross multiply
    159,217,920.83x = 238,917,890.51 × 86,440,618.82
  4. Step 4: Simplify right side
    159,217,920.83x = 20,652,210,301,226,612
  5. Step 5: Solve for x
    x = 20,652,210,301,226,612/159,217,920.83
  6. Step 6: Final answer
    x = 129,710,337.85

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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.