Home / 90,748,270.80-136,122,406.20-74,805,040.80

Finding the Fourth Proportional to 90,748,270.80, 136,122,406.20 and 74,805,040.80

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Solution

The fourth proportional to 90,748,270.80, 136,122,406.20 and 74,805,040.80 is: 112,207,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,748,270.80 : 136,122,406.20 = 74,805,040.80 : x
  2. Step 2: Convert to fraction form
    90,748,270.80/136,122,406.20 = 74,805,040.80/x
  3. Step 3: Cross multiply
    90,748,270.80x = 136,122,406.20 × 74,805,040.80
  4. Step 4: Simplify right side
    90,748,270.80x = 10,182,642,149,585,172
  5. Step 5: Solve for x
    x = 10,182,642,149,585,172/90,748,270.80
  6. Step 6: Final answer
    x = 112,207,561.20

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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.