Home / 12,447,926.70-18,671,890.05-3,929,124.30

Finding the Fourth Proportional to 12,447,926.70, 18,671,890.05 and 3,929,124.30

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Solution

The fourth proportional to 12,447,926.70, 18,671,890.05 and 3,929,124.30 is: 5,893,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447,926.70 : 18,671,890.05 = 3,929,124.30 : x
  2. Step 2: Convert to fraction form
    12,447,926.70/18,671,890.05 = 3,929,124.30/x
  3. Step 3: Cross multiply
    12,447,926.70x = 18,671,890.05 × 3,929,124.30
  4. Step 4: Simplify right side
    12,447,926.70x = 73,364,176,922,383.22
  5. Step 5: Solve for x
    x = 73,364,176,922,383.22/12,447,926.70
  6. Step 6: Final answer
    x = 5,893,686.45

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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.