Home / 12,285,842.35-16,957,834.79-7,130,864.65

Finding the Fourth Proportional to 12,285,842.35, 16,957,834.79 and 7,130,864.65

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Solution

The fourth proportional to 12,285,842.35, 16,957,834.79 and 7,130,864.65 is: 9,842,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,842.35 : 16,957,834.79 = 7,130,864.65 : x
  2. Step 2: Convert to fraction form
    12,285,842.35/16,957,834.79 = 7,130,864.65/x
  3. Step 3: Cross multiply
    12,285,842.35x = 16,957,834.79 × 7,130,864.65
  4. Step 4: Simplify right side
    12,285,842.35x = 120,924,024,524,107.67
  5. Step 5: Solve for x
    x = 120,924,024,524,107.67/12,285,842.35
  6. Step 6: Final answer
    x = 9,842,550.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.