Home / 13,178,617.20-18,186,351.53-7,377,446.61

Finding the Fourth Proportional to 13,178,617.20, 18,186,351.53 and 7,377,446.61

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Solution

The fourth proportional to 13,178,617.20, 18,186,351.53 and 7,377,446.61 is: 10,180,797.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,617.20 : 18,186,351.53 = 7,377,446.61 : x
  2. Step 2: Convert to fraction form
    13,178,617.20/18,186,351.53 = 7,377,446.61/x
  3. Step 3: Cross multiply
    13,178,617.20x = 18,186,351.53 × 7,377,446.61
  4. Step 4: Simplify right side
    13,178,617.20x = 134,168,837,406,379.58
  5. Step 5: Solve for x
    x = 134,168,837,406,379.58/13,178,617.20
  6. Step 6: Final answer
    x = 10,180,797.83

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1.5x scale

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.