Home / 18,106,772.90-25,053,143.85-15,788,499.57

Finding the Fourth Proportional to 18,106,772.90, 25,053,143.85 and 15,788,499.57

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Solution

The fourth proportional to 18,106,772.90, 25,053,143.85 and 15,788,499.57 is: 21,845,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,106,772.90 : 25,053,143.85 = 15,788,499.57 : x
  2. Step 2: Convert to fraction form
    18,106,772.90/25,053,143.85 = 15,788,499.57/x
  3. Step 3: Cross multiply
    18,106,772.90x = 25,053,143.85 × 15,788,499.57
  4. Step 4: Simplify right side
    18,106,772.90x = 395,551,550,902,873.19
  5. Step 5: Solve for x
    x = 395,551,550,902,873.19/18,106,772.90
  6. Step 6: Final answer
    x = 21,845,502.41

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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.