Home / 18,721,853.40-28,082,780.10-17,462,141.40

Finding the Fourth Proportional to 18,721,853.40, 28,082,780.10 and 17,462,141.40

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Solution

The fourth proportional to 18,721,853.40, 28,082,780.10 and 17,462,141.40 is: 26,193,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,853.40 : 28,082,780.10 = 17,462,141.40 : x
  2. Step 2: Convert to fraction form
    18,721,853.40/28,082,780.10 = 17,462,141.40/x
  3. Step 3: Cross multiply
    18,721,853.40x = 28,082,780.10 × 17,462,141.40
  4. Step 4: Simplify right side
    18,721,853.40x = 490,385,477,011,306.12
  5. Step 5: Solve for x
    x = 490,385,477,011,306.12/18,721,853.40
  6. Step 6: Final answer
    x = 26,193,212.10

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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.