Home / 807,057,727.60-1,210,586,591.40-261,799,261.60

Finding the Fourth Proportional to 807,057,727.60, 1,210,586,591.40 and 261,799,261.60

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Solution

The fourth proportional to 807,057,727.60, 1,210,586,591.40 and 261,799,261.60 is: 392,698,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,057,727.60 : 1,210,586,591.40 = 261,799,261.60 : x
  2. Step 2: Convert to fraction form
    807,057,727.60/1,210,586,591.40 = 261,799,261.60/x
  3. Step 3: Cross multiply
    807,057,727.60x = 1,210,586,591.40 × 261,799,261.60
  4. Step 4: Simplify right side
    807,057,727.60x = 316,930,675,731,380,928
  5. Step 5: Solve for x
    x = 316,930,675,731,380,928/807,057,727.60
  6. Step 6: Final answer
    x = 392,698,892.40

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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.