Home / 31,506,072.20-47,259,108.30-18,031,819.40

Finding the Fourth Proportional to 31,506,072.20, 47,259,108.30 and 18,031,819.40

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Solution

The fourth proportional to 31,506,072.20, 47,259,108.30 and 18,031,819.40 is: 27,047,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506,072.20 : 47,259,108.30 = 18,031,819.40 : x
  2. Step 2: Convert to fraction form
    31,506,072.20/47,259,108.30 = 18,031,819.40/x
  3. Step 3: Cross multiply
    31,506,072.20x = 47,259,108.30 × 18,031,819.40
  4. Step 4: Simplify right side
    31,506,072.20x = 852,167,705,870,640.88
  5. Step 5: Solve for x
    x = 852,167,705,870,640.88/31,506,072.20
  6. Step 6: Final answer
    x = 27,047,729.10

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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.