Home / 40,188,087.12-55,490,799.38-30,880,986.65

Finding the Fourth Proportional to 40,188,087.12, 55,490,799.38 and 30,880,986.65

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Solution

The fourth proportional to 40,188,087.12, 55,490,799.38 and 30,880,986.65 is: 42,639,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,188,087.12 : 55,490,799.38 = 30,880,986.65 : x
  2. Step 2: Convert to fraction form
    40,188,087.12/55,490,799.38 = 30,880,986.65/x
  3. Step 3: Cross multiply
    40,188,087.12x = 55,490,799.38 × 30,880,986.65
  4. Step 4: Simplify right side
    40,188,087.12x = 1,713,610,634,574,154.25
  5. Step 5: Solve for x
    x = 1,713,610,634,574,154.25/40,188,087.12
  6. Step 6: Final answer
    x = 42,639,766.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.