Home / 28,107,952.32-38,784,684.48-15,880,347.84

Finding the Fourth Proportional to 28,107,952.32, 38,784,684.48 and 15,880,347.84

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Solution

The fourth proportional to 28,107,952.32, 38,784,684.48 and 15,880,347.84 is: 21,912,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107,952.32 : 38,784,684.48 = 15,880,347.84 : x
  2. Step 2: Convert to fraction form
    28,107,952.32/38,784,684.48 = 15,880,347.84/x
  3. Step 3: Cross multiply
    28,107,952.32x = 38,784,684.48 × 15,880,347.84
  4. Step 4: Simplify right side
    28,107,952.32x = 615,914,280,407,049.50
  5. Step 5: Solve for x
    x = 615,914,280,407,049.50/28,107,952.32
  6. Step 6: Final answer
    x = 21,912,456.42

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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.