Home / 90,124,096.20-135,202,973.88-40,943,402.70

Finding the Fourth Proportional to 90,124,096.20, 135,202,973.88 and 40,943,402.70

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Solution

The fourth proportional to 90,124,096.20, 135,202,973.88 and 40,943,402.70 is: 61,422,749.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,124,096.20 : 135,202,973.88 = 40,943,402.70 : x
  2. Step 2: Convert to fraction form
    90,124,096.20/135,202,973.88 = 40,943,402.70/x
  3. Step 3: Cross multiply
    90,124,096.20x = 135,202,973.88 × 40,943,402.70
  4. Step 4: Simplify right side
    90,124,096.20x = 5,535,669,805,806,422
  5. Step 5: Solve for x
    x = 5,535,669,805,806,422/90,124,096.20
  6. Step 6: Final answer
    x = 61,422,749.73

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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.