Home / 81,563,940.18-112,567,821.90-45,806,257.50

Finding the Fourth Proportional to 81,563,940.18, 112,567,821.90 and 45,806,257.50

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Solution

The fourth proportional to 81,563,940.18, 112,567,821.90 and 45,806,257.50 is: 63,218,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,563,940.18 : 112,567,821.90 = 45,806,257.50 : x
  2. Step 2: Convert to fraction form
    81,563,940.18/112,567,821.90 = 45,806,257.50/x
  3. Step 3: Cross multiply
    81,563,940.18x = 112,567,821.90 × 45,806,257.50
  4. Step 4: Simplify right side
    81,563,940.18x = 5,156,310,636,165,540
  5. Step 5: Solve for x
    x = 5,156,310,636,165,540/81,563,940.18
  6. Step 6: Final answer
    x = 63,218,017.97

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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.