Home / 421,951,740.40-633,143,435.16-200,872,874.80

Finding the Fourth Proportional to 421,951,740.40, 633,143,435.16 and 200,872,874.80

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Solution

The fourth proportional to 421,951,740.40, 633,143,435.16 and 200,872,874.80 is: 301,412,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,951,740.40 : 633,143,435.16 = 200,872,874.80 : x
  2. Step 2: Convert to fraction form
    421,951,740.40/633,143,435.16 = 200,872,874.80/x
  3. Step 3: Cross multiply
    421,951,740.40x = 633,143,435.16 × 200,872,874.80
  4. Step 4: Simplify right side
    421,951,740.40x = 127,181,341,981,336,592
  5. Step 5: Solve for x
    x = 127,181,341,981,336,592/421,951,740.40
  6. Step 6: Final answer
    x = 301,412,056.89

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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.