Home / 290,304,047.20-435,493,395.60-144,811,976.80

Finding the Fourth Proportional to 290,304,047.20, 435,493,395.60 and 144,811,976.80

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Solution

The fourth proportional to 290,304,047.20, 435,493,395.60 and 144,811,976.80 is: 217,236,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,304,047.20 : 435,493,395.60 = 144,811,976.80 : x
  2. Step 2: Convert to fraction form
    290,304,047.20/435,493,395.60 = 144,811,976.80/x
  3. Step 3: Cross multiply
    290,304,047.20x = 435,493,395.60 × 144,811,976.80
  4. Step 4: Simplify right side
    290,304,047.20x = 63,064,659,500,180,432
  5. Step 5: Solve for x
    x = 63,064,659,500,180,432/290,304,047.20
  6. Step 6: Final answer
    x = 217,236,583.88

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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.