Home / 252,127,855.62-378,163,378.40-67,908,815.23

Finding the Fourth Proportional to 252,127,855.62, 378,163,378.40 and 67,908,815.23

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Solution

The fourth proportional to 252,127,855.62, 378,163,378.40 and 67,908,815.23 is: 101,855,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,127,855.62 : 378,163,378.40 = 67,908,815.23 : x
  2. Step 2: Convert to fraction form
    252,127,855.62/378,163,378.40 = 67,908,815.23/x
  3. Step 3: Cross multiply
    252,127,855.62x = 378,163,378.40 × 67,908,815.23
  4. Step 4: Simplify right side
    252,127,855.62x = 25,680,626,989,233,220
  5. Step 5: Solve for x
    x = 25,680,626,989,233,220/252,127,855.62
  6. Step 6: Final answer
    x = 101,855,572.15

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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.