Home / 978,720,769.12-1,350,634,586.25-532,687,330.66

Finding the Fourth Proportional to 978,720,769.12, 1,350,634,586.25 and 532,687,330.66

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Solution

The fourth proportional to 978,720,769.12, 1,350,634,586.25 and 532,687,330.66 is: 735,108,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,720,769.12 : 1,350,634,586.25 = 532,687,330.66 : x
  2. Step 2: Convert to fraction form
    978,720,769.12/1,350,634,586.25 = 532,687,330.66/x
  3. Step 3: Cross multiply
    978,720,769.12x = 1,350,634,586.25 × 532,687,330.66
  4. Step 4: Simplify right side
    978,720,769.12x = 719,465,932,446,586,112
  5. Step 5: Solve for x
    x = 719,465,932,446,586,112/978,720,769.12
  6. Step 6: Final answer
    x = 735,108,475.42

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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.