Home / 13,306,436.80-19,959,655.20-7,259,819.20

Finding the Fourth Proportional to 13,306,436.80, 19,959,655.20 and 7,259,819.20

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Solution

The fourth proportional to 13,306,436.80, 19,959,655.20 and 7,259,819.20 is: 10,889,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,436.80 : 19,959,655.20 = 7,259,819.20 : x
  2. Step 2: Convert to fraction form
    13,306,436.80/19,959,655.20 = 7,259,819.20/x
  3. Step 3: Cross multiply
    13,306,436.80x = 19,959,655.20 × 7,259,819.20
  4. Step 4: Simplify right side
    13,306,436.80x = 144,903,488,046,339.84
  5. Step 5: Solve for x
    x = 144,903,488,046,339.84/13,306,436.80
  6. Step 6: Final answer
    x = 10,889,728.80

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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.