Home / 440,123,348.70-660,185,023.05-285,155,153.10

Finding the Fourth Proportional to 440,123,348.70, 660,185,023.05 and 285,155,153.10

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Solution

The fourth proportional to 440,123,348.70, 660,185,023.05 and 285,155,153.10 is: 427,732,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,123,348.70 : 660,185,023.05 = 285,155,153.10 : x
  2. Step 2: Convert to fraction form
    440,123,348.70/660,185,023.05 = 285,155,153.10/x
  3. Step 3: Cross multiply
    440,123,348.70x = 660,185,023.05 × 285,155,153.10
  4. Step 4: Simplify right side
    440,123,348.70x = 188,255,161,322,149,792
  5. Step 5: Solve for x
    x = 188,255,161,322,149,792/440,123,348.70
  6. Step 6: Final answer
    x = 427,732,729.65

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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.