Home / 20,776,499.10-31,164,748.65-9,988,246.80

Finding the Fourth Proportional to 20,776,499.10, 31,164,748.65 and 9,988,246.80

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Solution

The fourth proportional to 20,776,499.10, 31,164,748.65 and 9,988,246.80 is: 14,982,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,499.10 : 31,164,748.65 = 9,988,246.80 : x
  2. Step 2: Convert to fraction form
    20,776,499.10/31,164,748.65 = 9,988,246.80/x
  3. Step 3: Cross multiply
    20,776,499.10x = 31,164,748.65 × 9,988,246.80
  4. Step 4: Simplify right side
    20,776,499.10x = 311,281,200,976,166.81
  5. Step 5: Solve for x
    x = 311,281,200,976,166.81/20,776,499.10
  6. Step 6: Final answer
    x = 14,982,370.20

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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.