Home / 100,152,264.78-138,210,937.00-55,498,982.83

Finding the Fourth Proportional to 100,152,264.78, 138,210,937.00 and 55,498,982.83

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Solution

The fourth proportional to 100,152,264.78, 138,210,937.00 and 55,498,982.83 is: 76,589,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,152,264.78 : 138,210,937.00 = 55,498,982.83 : x
  2. Step 2: Convert to fraction form
    100,152,264.78/138,210,937.00 = 55,498,982.83/x
  3. Step 3: Cross multiply
    100,152,264.78x = 138,210,937.00 × 55,498,982.83
  4. Step 4: Simplify right side
    100,152,264.78x = 7,670,566,418,996,937
  5. Step 5: Solve for x
    x = 7,670,566,418,996,937/100,152,264.78
  6. Step 6: Final answer
    x = 76,589,046.05

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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.