Home / 18,882,983.79-28,216,980.18-14,178,390.93

Finding the Fourth Proportional to 18,882,983.79, 28,216,980.18 and 14,178,390.93

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Solution

The fourth proportional to 18,882,983.79, 28,216,980.18 and 14,178,390.93 is: 21,186,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882,983.79 : 28,216,980.18 = 14,178,390.93 : x
  2. Step 2: Convert to fraction form
    18,882,983.79/28,216,980.18 = 14,178,390.93/x
  3. Step 3: Cross multiply
    18,882,983.79x = 28,216,980.18 × 14,178,390.93
  4. Step 4: Simplify right side
    18,882,983.79x = 400,071,375,856,101.75
  5. Step 5: Solve for x
    x = 400,071,375,856,101.75/18,882,983.79
  6. Step 6: Final answer
    x = 21,186,872.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.