Home / 129,487,681.20-194,231,521.80-100,577,290.80

Finding the Fourth Proportional to 129,487,681.20, 194,231,521.80 and 100,577,290.80

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Solution

The fourth proportional to 129,487,681.20, 194,231,521.80 and 100,577,290.80 is: 150,865,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,681.20 : 194,231,521.80 = 100,577,290.80 : x
  2. Step 2: Convert to fraction form
    129,487,681.20/194,231,521.80 = 100,577,290.80/x
  3. Step 3: Cross multiply
    129,487,681.20x = 194,231,521.80 × 100,577,290.80
  4. Step 4: Simplify right side
    129,487,681.20x = 19,535,280,250,605,140
  5. Step 5: Solve for x
    x = 19,535,280,250,605,140/129,487,681.20
  6. Step 6: Final answer
    x = 150,865,936.20

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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.