Home / 726,706,780.80-1,090,060,171.20-531,561,645.60

Finding the Fourth Proportional to 726,706,780.80, 1,090,060,171.20 and 531,561,645.60

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Solution

The fourth proportional to 726,706,780.80, 1,090,060,171.20 and 531,561,645.60 is: 797,342,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,706,780.80 : 1,090,060,171.20 = 531,561,645.60 : x
  2. Step 2: Convert to fraction form
    726,706,780.80/1,090,060,171.20 = 531,561,645.60/x
  3. Step 3: Cross multiply
    726,706,780.80x = 1,090,060,171.20 × 531,561,645.60
  4. Step 4: Simplify right side
    726,706,780.80x = 579,434,178,406,089,728
  5. Step 5: Solve for x
    x = 579,434,178,406,089,728/726,706,780.80
  6. Step 6: Final answer
    x = 797,342,468.40

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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.