Home / 28,162,535.16-38,935,373.98-20,808,769.80

Finding the Fourth Proportional to 28,162,535.16, 38,935,373.98 and 20,808,769.80

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Solution

The fourth proportional to 28,162,535.16, 38,935,373.98 and 20,808,769.80 is: 28,768,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162,535.16 : 38,935,373.98 = 20,808,769.80 : x
  2. Step 2: Convert to fraction form
    28,162,535.16/38,935,373.98 = 20,808,769.80/x
  3. Step 3: Cross multiply
    28,162,535.16x = 38,935,373.98 × 20,808,769.80
  4. Step 4: Simplify right side
    28,162,535.16x = 810,197,234,226,729.75
  5. Step 5: Solve for x
    x = 810,197,234,226,729.75/28,162,535.16
  6. Step 6: Final answer
    x = 28,768,618.65

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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.