Home / 18,713,120.40-28,079,011.80-10,632,301.20

Finding the Fourth Proportional to 18,713,120.40, 28,079,011.80 and 10,632,301.20

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Solution

The fourth proportional to 18,713,120.40, 28,079,011.80 and 10,632,301.20 is: 15,953,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713,120.40 : 28,079,011.80 = 10,632,301.20 : x
  2. Step 2: Convert to fraction form
    18,713,120.40/28,079,011.80 = 10,632,301.20/x
  3. Step 3: Cross multiply
    18,713,120.40x = 28,079,011.80 × 10,632,301.20
  4. Step 4: Simplify right side
    18,713,120.40x = 298,544,510,855,954.12
  5. Step 5: Solve for x
    x = 298,544,510,855,954.12/18,713,120.40
  6. Step 6: Final answer
    x = 15,953,753.54

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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.