Home / 15,428,427.78-23,142,405.90-3,756,908.40

Finding the Fourth Proportional to 15,428,427.78, 23,142,405.90 and 3,756,908.40

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Solution

The fourth proportional to 15,428,427.78, 23,142,405.90 and 3,756,908.40 is: 5,635,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428,427.78 : 23,142,405.90 = 3,756,908.40 : x
  2. Step 2: Convert to fraction form
    15,428,427.78/23,142,405.90 = 3,756,908.40/x
  3. Step 3: Cross multiply
    15,428,427.78x = 23,142,405.90 × 3,756,908.40
  4. Step 4: Simplify right side
    15,428,427.78x = 86,943,899,121,919.55
  5. Step 5: Solve for x
    x = 86,943,899,121,919.55/15,428,427.78
  6. Step 6: Final answer
    x = 5,635,305.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.