Home / 91,864,642.80-137,796,964.20-75,921,412.80

Finding the Fourth Proportional to 91,864,642.80, 137,796,964.20 and 75,921,412.80

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Solution

The fourth proportional to 91,864,642.80, 137,796,964.20 and 75,921,412.80 is: 113,882,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,642.80 : 137,796,964.20 = 75,921,412.80 : x
  2. Step 2: Convert to fraction form
    91,864,642.80/137,796,964.20 = 75,921,412.80/x
  3. Step 3: Cross multiply
    91,864,642.80x = 137,796,964.20 × 75,921,412.80
  4. Step 4: Simplify right side
    91,864,642.80x = 10,461,740,201,615,020
  5. Step 5: Solve for x
    x = 10,461,740,201,615,020/91,864,642.80
  6. Step 6: Final answer
    x = 113,882,119.20

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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.