Home / 28,162,535.40-38,935,374.30-20,808,770.04

Finding the Fourth Proportional to 28,162,535.40, 38,935,374.30 and 20,808,770.04

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Solution

The fourth proportional to 28,162,535.40, 38,935,374.30 and 20,808,770.04 is: 28,768,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162,535.40 : 38,935,374.30 = 20,808,770.04 : x
  2. Step 2: Convert to fraction form
    28,162,535.40/38,935,374.30 = 20,808,770.04/x
  3. Step 3: Cross multiply
    28,162,535.40x = 38,935,374.30 × 20,808,770.04
  4. Step 4: Simplify right side
    28,162,535.40x = 810,197,250,230,025.88
  5. Step 5: Solve for x
    x = 810,197,250,230,025.88/28,162,535.40
  6. Step 6: Final answer
    x = 28,768,618.97

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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.