Home / 876,723,333.12-1,209,419,493.12-542,088,888.48

Finding the Fourth Proportional to 876,723,333.12, 1,209,419,493.12 and 542,088,888.48

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Solution

The fourth proportional to 876,723,333.12, 1,209,419,493.12 and 542,088,888.48 is: 747,799,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,723,333.12 : 1,209,419,493.12 = 542,088,888.48 : x
  2. Step 2: Convert to fraction form
    876,723,333.12/1,209,419,493.12 = 542,088,888.48/x
  3. Step 3: Cross multiply
    876,723,333.12x = 1,209,419,493.12 × 542,088,888.48
  4. Step 4: Simplify right side
    876,723,333.12x = 655,612,868,731,465,728
  5. Step 5: Solve for x
    x = 655,612,868,731,465,728/876,723,333.12
  6. Step 6: Final answer
    x = 747,799,042.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.