Home / 21,113,184.24-31,538,778.51-15,309,848.52

Finding the Fourth Proportional to 21,113,184.24, 31,538,778.51 and 15,309,848.52

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Solution

The fourth proportional to 21,113,184.24, 31,538,778.51 and 15,309,848.52 is: 22,869,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113,184.24 : 31,538,778.51 = 15,309,848.52 : x
  2. Step 2: Convert to fraction form
    21,113,184.24/31,538,778.51 = 15,309,848.52/x
  3. Step 3: Cross multiply
    21,113,184.24x = 31,538,778.51 × 15,309,848.52
  4. Step 4: Simplify right side
    21,113,184.24x = 482,853,921,493,931.31
  5. Step 5: Solve for x
    x = 482,853,921,493,931.31/21,113,184.24
  6. Step 6: Final answer
    x = 22,869,782.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.