Home / 145,220,805.20-217,831,207.80-127,304,901.20

Finding the Fourth Proportional to 145,220,805.20, 217,831,207.80 and 127,304,901.20

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Solution

The fourth proportional to 145,220,805.20, 217,831,207.80 and 127,304,901.20 is: 190,957,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,805.20 : 217,831,207.80 = 127,304,901.20 : x
  2. Step 2: Convert to fraction form
    145,220,805.20/217,831,207.80 = 127,304,901.20/x
  3. Step 3: Cross multiply
    145,220,805.20x = 217,831,207.80 × 127,304,901.20
  4. Step 4: Simplify right side
    145,220,805.20x = 27,730,980,387,255,672
  5. Step 5: Solve for x
    x = 27,730,980,387,255,672/145,220,805.20
  6. Step 6: Final answer
    x = 190,957,351.80

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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.