Home / 12,447,926.20-18,671,889.30-3,929,123.80

Finding the Fourth Proportional to 12,447,926.20, 18,671,889.30 and 3,929,123.80

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Solution

The fourth proportional to 12,447,926.20, 18,671,889.30 and 3,929,123.80 is: 5,893,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447,926.20 : 18,671,889.30 = 3,929,123.80 : x
  2. Step 2: Convert to fraction form
    12,447,926.20/18,671,889.30 = 3,929,123.80/x
  3. Step 3: Cross multiply
    12,447,926.20x = 18,671,889.30 × 3,929,123.80
  4. Step 4: Simplify right side
    12,447,926.20x = 73,364,164,639,595.34
  5. Step 5: Solve for x
    x = 73,364,164,639,595.34/12,447,926.20
  6. Step 6: Final answer
    x = 5,893,685.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.