Home / 20,197,382.19-30,340,913.61-12,526,695.65

Finding the Fourth Proportional to 20,197,382.19, 30,340,913.61 and 12,526,695.65

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Solution

The fourth proportional to 20,197,382.19, 30,340,913.61 and 12,526,695.65 is: 18,817,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197,382.19 : 30,340,913.61 = 12,526,695.65 : x
  2. Step 2: Convert to fraction form
    20,197,382.19/30,340,913.61 = 12,526,695.65/x
  3. Step 3: Cross multiply
    20,197,382.19x = 30,340,913.61 × 12,526,695.65
  4. Step 4: Simplify right side
    20,197,382.19x = 380,071,390,535,412.81
  5. Step 5: Solve for x
    x = 380,071,390,535,412.81/20,197,382.19
  6. Step 6: Final answer
    x = 18,817,854.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.