Home / 434,439,279.20-651,690,411.60-261,543,807.20

Finding the Fourth Proportional to 434,439,279.20, 651,690,411.60 and 261,543,807.20

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Solution

The fourth proportional to 434,439,279.20, 651,690,411.60 and 261,543,807.20 is: 392,334,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,439,279.20 : 651,690,411.60 = 261,543,807.20 : x
  2. Step 2: Convert to fraction form
    434,439,279.20/651,690,411.60 = 261,543,807.20/x
  3. Step 3: Cross multiply
    434,439,279.20x = 651,690,411.60 × 261,543,807.20
  4. Step 4: Simplify right side
    434,439,279.20x = 170,445,591,365,599,040
  5. Step 5: Solve for x
    x = 170,445,591,365,599,040/434,439,279.20
  6. Step 6: Final answer
    x = 392,334,670.29

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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.