Home / 278,642,079.60-417,963,119.40-149,501,916.60

Finding the Fourth Proportional to 278,642,079.60, 417,963,119.40 and 149,501,916.60

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Solution

The fourth proportional to 278,642,079.60, 417,963,119.40 and 149,501,916.60 is: 224,252,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,642,079.60 : 417,963,119.40 = 149,501,916.60 : x
  2. Step 2: Convert to fraction form
    278,642,079.60/417,963,119.40 = 149,501,916.60/x
  3. Step 3: Cross multiply
    278,642,079.60x = 417,963,119.40 × 149,501,916.60
  4. Step 4: Simplify right side
    278,642,079.60x = 62,486,287,418,414,632
  5. Step 5: Solve for x
    x = 62,486,287,418,414,632/278,642,079.60
  6. Step 6: Final answer
    x = 224,252,874.90

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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.