Home / 15,853,069.97-21,877,775.10-15,126,656.55

Finding the Fourth Proportional to 15,853,069.97, 21,877,775.10 and 15,126,656.55

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Solution

The fourth proportional to 15,853,069.97, 21,877,775.10 and 15,126,656.55 is: 20,875,299.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,069.97 : 21,877,775.10 = 15,126,656.55 : x
  2. Step 2: Convert to fraction form
    15,853,069.97/21,877,775.10 = 15,126,656.55/x
  3. Step 3: Cross multiply
    15,853,069.97x = 21,877,775.10 × 15,126,656.55
  4. Step 4: Simplify right side
    15,853,069.97x = 330,937,590,015,841.94
  5. Step 5: Solve for x
    x = 330,937,590,015,841.94/15,853,069.97
  6. Step 6: Final answer
    x = 20,875,299.91

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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.