Home / 556,678,733.64-768,171,851.88-321,744,610.76

Finding the Fourth Proportional to 556,678,733.64, 768,171,851.88 and 321,744,610.76

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Solution

The fourth proportional to 556,678,733.64, 768,171,851.88 and 321,744,610.76 is: 443,981,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,678,733.64 : 768,171,851.88 = 321,744,610.76 : x
  2. Step 2: Convert to fraction form
    556,678,733.64/768,171,851.88 = 321,744,610.76/x
  3. Step 3: Cross multiply
    556,678,733.64x = 768,171,851.88 × 321,744,610.76
  4. Step 4: Simplify right side
    556,678,733.64x = 247,155,153,479,918,976
  5. Step 5: Solve for x
    x = 247,155,153,479,918,976/556,678,733.64
  6. Step 6: Final answer
    x = 443,981,669.40

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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.