Home / 113,335,394.40-169,719,656.40-90,660,578.40

Finding the Fourth Proportional to 113,335,394.40, 169,719,656.40 and 90,660,578.40

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Solution

The fourth proportional to 113,335,394.40, 169,719,656.40 and 90,660,578.40 is: 135,764,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,335,394.40 : 169,719,656.40 = 90,660,578.40 : x
  2. Step 2: Convert to fraction form
    113,335,394.40/169,719,656.40 = 90,660,578.40/x
  3. Step 3: Cross multiply
    113,335,394.40x = 169,719,656.40 × 90,660,578.40
  4. Step 4: Simplify right side
    113,335,394.40x = 15,386,882,215,073,264
  5. Step 5: Solve for x
    x = 15,386,882,215,073,264/113,335,394.40
  6. Step 6: Final answer
    x = 135,764,138.79

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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.