Home / 19,011,780.45-28,471,162.10-17,169,451.65

Finding the Fourth Proportional to 19,011,780.45, 28,471,162.10 and 17,169,451.65

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Solution

The fourth proportional to 19,011,780.45, 28,471,162.10 and 17,169,451.65 is: 25,712,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011,780.45 : 28,471,162.10 = 17,169,451.65 : x
  2. Step 2: Convert to fraction form
    19,011,780.45/28,471,162.10 = 17,169,451.65/x
  3. Step 3: Cross multiply
    19,011,780.45x = 28,471,162.10 × 17,169,451.65
  4. Step 4: Simplify right side
    19,011,780.45x = 488,834,241,009,415.12
  5. Step 5: Solve for x
    x = 488,834,241,009,415.12/19,011,780.45
  6. Step 6: Final answer
    x = 25,712,175.79

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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.