Home / 40,502,205.53-55,893,190.78-21,917,343.70

Finding the Fourth Proportional to 40,502,205.53, 55,893,190.78 and 21,917,343.70

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Solution

The fourth proportional to 40,502,205.53, 55,893,190.78 and 21,917,343.70 is: 30,246,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,502,205.53 : 55,893,190.78 = 21,917,343.70 : x
  2. Step 2: Convert to fraction form
    40,502,205.53/55,893,190.78 = 21,917,343.70/x
  3. Step 3: Cross multiply
    40,502,205.53x = 55,893,190.78 × 21,917,343.70
  4. Step 4: Simplify right side
    40,502,205.53x = 1,225,030,272,620,405
  5. Step 5: Solve for x
    x = 1,225,030,272,620,405/40,502,205.53
  6. Step 6: Final answer
    x = 30,246,013.93

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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.