Home / 13,288,719.40-19,932,042.30-5,200,124.20

Finding the Fourth Proportional to 13,288,719.40, 19,932,042.30 and 5,200,124.20

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Solution

The fourth proportional to 13,288,719.40, 19,932,042.30 and 5,200,124.20 is: 7,799,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288,719.40 : 19,932,042.30 = 5,200,124.20 : x
  2. Step 2: Convert to fraction form
    13,288,719.40/19,932,042.30 = 5,200,124.20/x
  3. Step 3: Cross multiply
    13,288,719.40x = 19,932,042.30 × 5,200,124.20
  4. Step 4: Simplify right side
    13,288,719.40x = 103,649,095,519,653.67
  5. Step 5: Solve for x
    x = 103,649,095,519,653.67/13,288,719.40
  6. Step 6: Final answer
    x = 7,799,780.58

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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.