Home / 80,313,687-110,842,335.90-47,718,639

Finding the Fourth Proportional to 80,313,687, 110,842,335.90 and 47,718,639

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Solution

The fourth proportional to 80,313,687, 110,842,335.90 and 47,718,639 is: 65,857,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,313,687 : 110,842,335.90 = 47,718,639 : x
  2. Step 2: Convert to fraction form
    80,313,687/110,842,335.90 = 47,718,639/x
  3. Step 3: Cross multiply
    80,313,687x = 110,842,335.90 × 47,718,639
  4. Step 4: Simplify right side
    80,313,687x = 5,289,245,412,728,840
  5. Step 5: Solve for x
    x = 5,289,245,412,728,840/80,313,687
  6. Step 6: Final answer
    x = 65,857,335.28

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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.