Home / 20,176,278.40-30,264,417.60-8,047,613.80

Finding the Fourth Proportional to 20,176,278.40, 30,264,417.60 and 8,047,613.80

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Solution

The fourth proportional to 20,176,278.40, 30,264,417.60 and 8,047,613.80 is: 12,071,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176,278.40 : 30,264,417.60 = 8,047,613.80 : x
  2. Step 2: Convert to fraction form
    20,176,278.40/30,264,417.60 = 8,047,613.80/x
  3. Step 3: Cross multiply
    20,176,278.40x = 30,264,417.60 × 8,047,613.80
  4. Step 4: Simplify right side
    20,176,278.40x = 243,556,344,726,722.88
  5. Step 5: Solve for x
    x = 243,556,344,726,722.88/20,176,278.40
  6. Step 6: Final answer
    x = 12,071,420.70

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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.