Home / 427,565,519.90-641,348,279.85-366,343,516.70

Finding the Fourth Proportional to 427,565,519.90, 641,348,279.85 and 366,343,516.70

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Solution

The fourth proportional to 427,565,519.90, 641,348,279.85 and 366,343,516.70 is: 549,515,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,565,519.90 : 641,348,279.85 = 366,343,516.70 : x
  2. Step 2: Convert to fraction form
    427,565,519.90/641,348,279.85 = 366,343,516.70/x
  3. Step 3: Cross multiply
    427,565,519.90x = 641,348,279.85 × 366,343,516.70
  4. Step 4: Simplify right side
    427,565,519.90x = 234,953,784,269,744,736
  5. Step 5: Solve for x
    x = 234,953,784,269,744,736/427,565,519.90
  6. Step 6: Final answer
    x = 549,515,275.05

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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.