Home / 442,869,460.40-664,304,190.60-136,121,715.20

Finding the Fourth Proportional to 442,869,460.40, 664,304,190.60 and 136,121,715.20

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Solution

The fourth proportional to 442,869,460.40, 664,304,190.60 and 136,121,715.20 is: 204,182,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,869,460.40 : 664,304,190.60 = 136,121,715.20 : x
  2. Step 2: Convert to fraction form
    442,869,460.40/664,304,190.60 = 136,121,715.20/x
  3. Step 3: Cross multiply
    442,869,460.40x = 664,304,190.60 × 136,121,715.20
  4. Step 4: Simplify right side
    442,869,460.40x = 90,426,225,839,019,712
  5. Step 5: Solve for x
    x = 90,426,225,839,019,712/442,869,460.40
  6. Step 6: Final answer
    x = 204,182,572.80

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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.