Home / 278,291,277.60-417,436,916.40-252,761,114.40

Finding the Fourth Proportional to 278,291,277.60, 417,436,916.40 and 252,761,114.40

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Solution

The fourth proportional to 278,291,277.60, 417,436,916.40 and 252,761,114.40 is: 379,141,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,291,277.60 : 417,436,916.40 = 252,761,114.40 : x
  2. Step 2: Convert to fraction form
    278,291,277.60/417,436,916.40 = 252,761,114.40/x
  3. Step 3: Cross multiply
    278,291,277.60x = 417,436,916.40 × 252,761,114.40
  4. Step 4: Simplify right side
    278,291,277.60x = 105,511,820,180,963,632
  5. Step 5: Solve for x
    x = 105,511,820,180,963,632/278,291,277.60
  6. Step 6: Final answer
    x = 379,141,671.60

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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.