Home / 38,311,932.94-52,869,729.68-20,908,402.71

Finding the Fourth Proportional to 38,311,932.94, 52,869,729.68 and 20,908,402.71

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Solution

The fourth proportional to 38,311,932.94, 52,869,729.68 and 20,908,402.71 is: 28,853,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,311,932.94 : 52,869,729.68 = 20,908,402.71 : x
  2. Step 2: Convert to fraction form
    38,311,932.94/52,869,729.68 = 20,908,402.71/x
  3. Step 3: Cross multiply
    38,311,932.94x = 52,869,729.68 × 20,908,402.71
  4. Step 4: Simplify right side
    38,311,932.94x = 1,105,421,599,318,279.50
  5. Step 5: Solve for x
    x = 1,105,421,599,318,279.50/38,311,932.94
  6. Step 6: Final answer
    x = 28,853,193.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.