Home / 13,188,319.20-19,782,478.80-9,787,096.80

Finding the Fourth Proportional to 13,188,319.20, 19,782,478.80 and 9,787,096.80

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Solution

The fourth proportional to 13,188,319.20, 19,782,478.80 and 9,787,096.80 is: 14,680,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,319.20 : 19,782,478.80 = 9,787,096.80 : x
  2. Step 2: Convert to fraction form
    13,188,319.20/19,782,478.80 = 9,787,096.80/x
  3. Step 3: Cross multiply
    13,188,319.20x = 19,782,478.80 × 9,787,096.80
  4. Step 4: Simplify right side
    13,188,319.20x = 193,613,034,959,547.88
  5. Step 5: Solve for x
    x = 193,613,034,959,547.88/13,188,319.20
  6. Step 6: Final answer
    x = 14,680,645.20

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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.