Home / 12,928,624.20-17,841,638.90-7,127,613.54

Finding the Fourth Proportional to 12,928,624.20, 17,841,638.90 and 7,127,613.54

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Solution

The fourth proportional to 12,928,624.20, 17,841,638.90 and 7,127,613.54 is: 9,836,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,624.20 : 17,841,638.90 = 7,127,613.54 : x
  2. Step 2: Convert to fraction form
    12,928,624.20/17,841,638.90 = 7,127,613.54/x
  3. Step 3: Cross multiply
    12,928,624.20x = 17,841,638.90 × 7,127,613.54
  4. Step 4: Simplify right side
    12,928,624.20x = 127,168,306,963,792.64
  5. Step 5: Solve for x
    x = 127,168,306,963,792.64/12,928,624.20
  6. Step 6: Final answer
    x = 9,836,182.49

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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.