Home / 90,711,810.80-136,067,716.20-65,202,642.80

Finding the Fourth Proportional to 90,711,810.80, 136,067,716.20 and 65,202,642.80

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Solution

The fourth proportional to 90,711,810.80, 136,067,716.20 and 65,202,642.80 is: 97,803,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711,810.80 : 136,067,716.20 = 65,202,642.80 : x
  2. Step 2: Convert to fraction form
    90,711,810.80/136,067,716.20 = 65,202,642.80/x
  3. Step 3: Cross multiply
    90,711,810.80x = 136,067,716.20 × 65,202,642.80
  4. Step 4: Simplify right side
    90,711,810.80x = 8,871,974,696,000,372
  5. Step 5: Solve for x
    x = 8,871,974,696,000,372/90,711,810.80
  6. Step 6: Final answer
    x = 97,803,964.20

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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.