Home / 81,901,387.98-122,869,358.10-26,564,925.78

Finding the Fourth Proportional to 81,901,387.98, 122,869,358.10 and 26,564,925.78

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Solution

The fourth proportional to 81,901,387.98, 122,869,358.10 and 26,564,925.78 is: 39,852,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,901,387.98 : 122,869,358.10 = 26,564,925.78 : x
  2. Step 2: Convert to fraction form
    81,901,387.98/122,869,358.10 = 26,564,925.78/x
  3. Step 3: Cross multiply
    81,901,387.98x = 122,869,358.10 × 26,564,925.78
  4. Step 4: Simplify right side
    81,901,387.98x = 3,264,015,378,562,742
  5. Step 5: Solve for x
    x = 3,264,015,378,562,742/81,901,387.98
  6. Step 6: Final answer
    x = 39,852,992.23

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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.