Home / 27,679,277.65-38,198,563.60-15,918,555.20

Finding the Fourth Proportional to 27,679,277.65, 38,198,563.60 and 15,918,555.20

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Solution

The fourth proportional to 27,679,277.65, 38,198,563.60 and 15,918,555.20 is: 21,968,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679,277.65 : 38,198,563.60 = 15,918,555.20 : x
  2. Step 2: Convert to fraction form
    27,679,277.65/38,198,563.60 = 15,918,555.20/x
  3. Step 3: Cross multiply
    27,679,277.65x = 38,198,563.60 × 15,918,555.20
  4. Step 4: Simplify right side
    27,679,277.65x = 608,065,943,359,158
  5. Step 5: Solve for x
    x = 608,065,943,359,158/27,679,277.65
  6. Step 6: Final answer
    x = 21,968,273.56

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Double scale
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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.