Home / 13,560,836.38-18,714,104.75-7,980,316.31

Finding the Fourth Proportional to 13,560,836.38, 18,714,104.75 and 7,980,316.31

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Solution

The fourth proportional to 13,560,836.38, 18,714,104.75 and 7,980,316.31 is: 11,012,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560,836.38 : 18,714,104.75 = 7,980,316.31 : x
  2. Step 2: Convert to fraction form
    13,560,836.38/18,714,104.75 = 7,980,316.31/x
  3. Step 3: Cross multiply
    13,560,836.38x = 18,714,104.75 × 7,980,316.31
  4. Step 4: Simplify right side
    13,560,836.38x = 149,344,475,363,473.47
  5. Step 5: Solve for x
    x = 149,344,475,363,473.47/13,560,836.38
  6. Step 6: Final answer
    x = 11,012,925.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.