Home / 542,605,740.78-813,580,918.35-243,419,882.16

Finding the Fourth Proportional to 542,605,740.78, 813,580,918.35 and 243,419,882.16

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Solution

The fourth proportional to 542,605,740.78, 813,580,918.35 and 243,419,882.16 is: 364,982,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,605,740.78 : 813,580,918.35 = 243,419,882.16 : x
  2. Step 2: Convert to fraction form
    542,605,740.78/813,580,918.35 = 243,419,882.16/x
  3. Step 3: Cross multiply
    542,605,740.78x = 813,580,918.35 × 243,419,882.16
  4. Step 4: Simplify right side
    542,605,740.78x = 198,041,771,272,381,600
  5. Step 5: Solve for x
    x = 198,041,771,272,381,600/542,605,740.78
  6. Step 6: Final answer
    x = 364,982,816.05

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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.