Home / 28,028,480.60-38,679,241.02-15,805,252.28

Finding the Fourth Proportional to 28,028,480.60, 38,679,241.02 and 15,805,252.28

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Solution

The fourth proportional to 28,028,480.60, 38,679,241.02 and 15,805,252.28 is: 21,811,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028,480.60 : 38,679,241.02 = 15,805,252.28 : x
  2. Step 2: Convert to fraction form
    28,028,480.60/38,679,241.02 = 15,805,252.28/x
  3. Step 3: Cross multiply
    28,028,480.60x = 38,679,241.02 × 15,805,252.28
  4. Step 4: Simplify right side
    28,028,480.60x = 611,335,162,320,024.50
  5. Step 5: Solve for x
    x = 611,335,162,320,024.50/28,028,480.60
  6. Step 6: Final answer
    x = 21,811,213.07

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1.5x scale

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.