Home / 353,990,042.10-488,508,305.40-197,366,899.86

Finding the Fourth Proportional to 353,990,042.10, 488,508,305.40 and 197,366,899.86

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Solution

The fourth proportional to 353,990,042.10, 488,508,305.40 and 197,366,899.86 is: 272,367,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,990,042.10 : 488,508,305.40 = 197,366,899.86 : x
  2. Step 2: Convert to fraction form
    353,990,042.10/488,508,305.40 = 197,366,899.86/x
  3. Step 3: Cross multiply
    353,990,042.10x = 488,508,305.40 × 197,366,899.86
  4. Step 4: Simplify right side
    353,990,042.10x = 96,415,369,792,660,096
  5. Step 5: Solve for x
    x = 96,415,369,792,660,096/353,990,042.10
  6. Step 6: Final answer
    x = 272,367,463.28

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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.