Home / 12,928,725.17-17,841,778.17-7,127,714.69

Finding the Fourth Proportional to 12,928,725.17, 17,841,778.17 and 7,127,714.69

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Solution

The fourth proportional to 12,928,725.17, 17,841,778.17 and 7,127,714.69 is: 9,836,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,725.17 : 17,841,778.17 = 7,127,714.69 : x
  2. Step 2: Convert to fraction form
    12,928,725.17/17,841,778.17 = 7,127,714.69/x
  3. Step 3: Cross multiply
    12,928,725.17x = 17,841,778.17 × 7,127,714.69
  4. Step 4: Simplify right side
    12,928,725.17x = 127,171,104,358,030.34
  5. Step 5: Solve for x
    x = 127,171,104,358,030.34/12,928,725.17
  6. Step 6: Final answer
    x = 9,836,322.04

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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.