Home / 355,654,874.30-533,780,909.85-161,864,512.70

Finding the Fourth Proportional to 355,654,874.30, 533,780,909.85 and 161,864,512.70

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Solution

The fourth proportional to 355,654,874.30, 533,780,909.85 and 161,864,512.70 is: 242,932,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,654,874.30 : 533,780,909.85 = 161,864,512.70 : x
  2. Step 2: Convert to fraction form
    355,654,874.30/533,780,909.85 = 161,864,512.70/x
  3. Step 3: Cross multiply
    355,654,874.30x = 533,780,909.85 × 161,864,512.70
  4. Step 4: Simplify right side
    355,654,874.30x = 86,400,186,861,432,880
  5. Step 5: Solve for x
    x = 86,400,186,861,432,880/355,654,874.30
  6. Step 6: Final answer
    x = 242,932,666.20

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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.