Home / 77,221,221,100.43-115,828,678,949.24-26,868,179,753.87

Finding the Fourth Proportional to 77,221,221,100.43, 115,828,678,949.24 and 26,868,179,753.87

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Solution

The fourth proportional to 77,221,221,100.43, 115,828,678,949.24 and 26,868,179,753.87 is: 40,301,172,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,221,221,100.43 : 115,828,678,949.24 = 26,868,179,753.87 : x
  2. Step 2: Convert to fraction form
    77,221,221,100.43/115,828,678,949.24 = 26,868,179,753.87/x
  3. Step 3: Cross multiply
    77,221,221,100.43x = 115,828,678,949.24 × 26,868,179,753.87
  4. Step 4: Simplify right side
    77,221,221,100.43x = 3,112,105,766,661,478,416,384
  5. Step 5: Solve for x
    x = 3,112,105,766,661,478,416,384/77,221,221,100.43
  6. Step 6: Final answer
    x = 40,301,172,686.90

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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.