Home / 28,501,562.88-42,765,630.39-16,986,565.08

Finding the Fourth Proportional to 28,501,562.88, 42,765,630.39 and 16,986,565.08

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Solution

The fourth proportional to 28,501,562.88, 42,765,630.39 and 16,986,565.08 is: 25,487,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501,562.88 : 42,765,630.39 = 16,986,565.08 : x
  2. Step 2: Convert to fraction form
    28,501,562.88/42,765,630.39 = 16,986,565.08/x
  3. Step 3: Cross multiply
    28,501,562.88x = 42,765,630.39 × 16,986,565.08
  4. Step 4: Simplify right side
    28,501,562.88x = 726,441,163,806,960.75
  5. Step 5: Solve for x
    x = 726,441,163,806,960.75/28,501,562.88
  6. Step 6: Final answer
    x = 25,487,765.95

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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.