Home / 353,989,988.10-488,508,230.88-197,366,845.86

Finding the Fourth Proportional to 353,989,988.10, 488,508,230.88 and 197,366,845.86

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Solution

The fourth proportional to 353,989,988.10, 488,508,230.88 and 197,366,845.86 is: 272,367,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,989,988.10 : 488,508,230.88 = 197,366,845.86 : x
  2. Step 2: Convert to fraction form
    353,989,988.10/488,508,230.88 = 197,366,845.86/x
  3. Step 3: Cross multiply
    353,989,988.10x = 488,508,230.88 × 197,366,845.86
  4. Step 4: Simplify right side
    353,989,988.10x = 96,415,328,705,434,256
  5. Step 5: Solve for x
    x = 96,415,328,705,434,256/353,989,988.10
  6. Step 6: Final answer
    x = 272,367,388.76

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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.