Home / 13,005,451.48-19,429,076.20-8,419,137.52

Finding the Fourth Proportional to 13,005,451.48, 19,429,076.20 and 8,419,137.52

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Solution

The fourth proportional to 13,005,451.48, 19,429,076.20 and 8,419,137.52 is: 12,577,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005,451.48 : 19,429,076.20 = 8,419,137.52 : x
  2. Step 2: Convert to fraction form
    13,005,451.48/19,429,076.20 = 8,419,137.52/x
  3. Step 3: Cross multiply
    13,005,451.48x = 19,429,076.20 × 8,419,137.52
  4. Step 4: Simplify right side
    13,005,451.48x = 163,576,064,414,359
  5. Step 5: Solve for x
    x = 163,576,064,414,359/13,005,451.48
  6. Step 6: Final answer
    x = 12,577,499.88

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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.