Home / 28,078,400.28-38,744,630.40-16,471,728.84

Finding the Fourth Proportional to 28,078,400.28, 38,744,630.40 and 16,471,728.84

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Solution

The fourth proportional to 28,078,400.28, 38,744,630.40 and 16,471,728.84 is: 22,728,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078,400.28 : 38,744,630.40 = 16,471,728.84 : x
  2. Step 2: Convert to fraction form
    28,078,400.28/38,744,630.40 = 16,471,728.84/x
  3. Step 3: Cross multiply
    28,078,400.28x = 38,744,630.40 × 16,471,728.84
  4. Step 4: Simplify right side
    28,078,400.28x = 638,191,045,954,820.75
  5. Step 5: Solve for x
    x = 638,191,045,954,820.75/28,078,400.28
  6. Step 6: Final answer
    x = 22,728,896.22

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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.