Home / 159,718,285.20-220,411,381.68-86,379,427.20

Finding the Fourth Proportional to 159,718,285.20, 220,411,381.68 and 86,379,427.20

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Solution

The fourth proportional to 159,718,285.20, 220,411,381.68 and 86,379,427.20 is: 119,203,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,718,285.20 : 220,411,381.68 = 86,379,427.20 : x
  2. Step 2: Convert to fraction form
    159,718,285.20/220,411,381.68 = 86,379,427.20/x
  3. Step 3: Cross multiply
    159,718,285.20x = 220,411,381.68 × 86,379,427.20
  4. Step 4: Simplify right side
    159,718,285.20x = 19,039,008,897,878,976
  5. Step 5: Solve for x
    x = 19,039,008,897,878,976/159,718,285.20
  6. Step 6: Final answer
    x = 119,203,689.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.