Home / 38,289,999-57,435,498.78-12,731,008.41

Finding the Fourth Proportional to 38,289,999, 57,435,498.78 and 12,731,008.41

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Solution

The fourth proportional to 38,289,999, 57,435,498.78 and 12,731,008.41 is: 19,096,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,289,999 : 57,435,498.78 = 12,731,008.41 : x
  2. Step 2: Convert to fraction form
    38,289,999/57,435,498.78 = 12,731,008.41/x
  3. Step 3: Cross multiply
    38,289,999x = 57,435,498.78 × 12,731,008.41
  4. Step 4: Simplify right side
    38,289,999x = 731,211,818,000,724.75
  5. Step 5: Solve for x
    x = 731,211,818,000,724.75/38,289,999
  6. Step 6: Final answer
    x = 19,096,678.95

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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.