Home / 87,654,842.84-120,967,243.78-48,495,981.81

Finding the Fourth Proportional to 87,654,842.84, 120,967,243.78 and 48,495,981.81

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Solution

The fourth proportional to 87,654,842.84, 120,967,243.78 and 48,495,981.81 is: 66,926,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654,842.84 : 120,967,243.78 = 48,495,981.81 : x
  2. Step 2: Convert to fraction form
    87,654,842.84/120,967,243.78 = 48,495,981.81/x
  3. Step 3: Cross multiply
    87,654,842.84x = 120,967,243.78 × 48,495,981.81
  4. Step 4: Simplify right side
    87,654,842.84x = 5,866,425,253,960,716
  5. Step 5: Solve for x
    x = 5,866,425,253,960,716/87,654,842.84
  6. Step 6: Final answer
    x = 66,926,424.87

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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.