Home / 12,928,619.64-17,841,617.02-7,127,608.96

Finding the Fourth Proportional to 12,928,619.64, 17,841,617.02 and 7,127,608.96

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Solution

The fourth proportional to 12,928,619.64, 17,841,617.02 and 7,127,608.96 is: 9,836,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,619.64 : 17,841,617.02 = 7,127,608.96 : x
  2. Step 2: Convert to fraction form
    12,928,619.64/17,841,617.02 = 7,127,608.96/x
  3. Step 3: Cross multiply
    12,928,619.64x = 17,841,617.02 × 7,127,608.96
  4. Step 4: Simplify right side
    12,928,619.64x = 127,168,069,332,640.50
  5. Step 5: Solve for x
    x = 127,168,069,332,640.50/12,928,619.64
  6. Step 6: Final answer
    x = 9,836,167.58

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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.