Home / 485,532,029.80-728,298,044.70-441,316,138.60

Finding the Fourth Proportional to 485,532,029.80, 728,298,044.70 and 441,316,138.60

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Solution

The fourth proportional to 485,532,029.80, 728,298,044.70 and 441,316,138.60 is: 661,974,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,532,029.80 : 728,298,044.70 = 441,316,138.60 : x
  2. Step 2: Convert to fraction form
    485,532,029.80/728,298,044.70 = 441,316,138.60/x
  3. Step 3: Cross multiply
    485,532,029.80x = 728,298,044.70 × 441,316,138.60
  4. Step 4: Simplify right side
    485,532,029.80x = 321,409,680,836,934,208
  5. Step 5: Solve for x
    x = 321,409,680,836,934,208/485,532,029.80
  6. Step 6: Final answer
    x = 661,974,207.90

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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.