Home / 821,030,439-1,132,114,086.54-523,200,891

Finding the Fourth Proportional to 821,030,439, 1,132,114,086.54 and 523,200,891

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Solution

The fourth proportional to 821,030,439, 1,132,114,086.54 and 523,200,891 is: 721,438,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,030,439 : 1,132,114,086.54 = 523,200,891 : x
  2. Step 2: Convert to fraction form
    821,030,439/1,132,114,086.54 = 523,200,891/x
  3. Step 3: Cross multiply
    821,030,439x = 1,132,114,086.54 × 523,200,891
  4. Step 4: Simplify right side
    821,030,439x = 592,323,098,791,379,072
  5. Step 5: Solve for x
    x = 592,323,098,791,379,072/821,030,439
  6. Step 6: Final answer
    x = 721,438,658.86

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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.