Home / 147,586,389.20-221,474,062.20-86,175,429.20

Finding the Fourth Proportional to 147,586,389.20, 221,474,062.20 and 86,175,429.20

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Solution

The fourth proportional to 147,586,389.20, 221,474,062.20 and 86,175,429.20 is: 129,318,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,586,389.20 : 221,474,062.20 = 86,175,429.20 : x
  2. Step 2: Convert to fraction form
    147,586,389.20/221,474,062.20 = 86,175,429.20/x
  3. Step 3: Cross multiply
    147,586,389.20x = 221,474,062.20 × 86,175,429.20
  4. Step 4: Simplify right side
    147,586,389.20x = 19,085,622,366,752,496
  5. Step 5: Solve for x
    x = 19,085,622,366,752,496/147,586,389.20
  6. Step 6: Final answer
    x = 129,318,309.57

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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.