Home / 863,748,779.20-1,294,055,527.20-499,160,132.80

Finding the Fourth Proportional to 863,748,779.20, 1,294,055,527.20 and 499,160,132.80

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Solution

The fourth proportional to 863,748,779.20, 1,294,055,527.20 and 499,160,132.80 is: 747,834,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,748,779.20 : 1,294,055,527.20 = 499,160,132.80 : x
  2. Step 2: Convert to fraction form
    863,748,779.20/1,294,055,527.20 = 499,160,132.80/x
  3. Step 3: Cross multiply
    863,748,779.20x = 1,294,055,527.20 × 499,160,132.80
  4. Step 4: Simplify right side
    863,748,779.20x = 645,940,928,807,726,080
  5. Step 5: Solve for x
    x = 645,940,928,807,726,080/863,748,779.20
  6. Step 6: Final answer
    x = 747,834,259.64

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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.