Home / 12,440,764.65-18,661,146.98-10,315,000.65

Finding the Fourth Proportional to 12,440,764.65, 18,661,146.98 and 10,315,000.65

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Solution

The fourth proportional to 12,440,764.65, 18,661,146.98 and 10,315,000.65 is: 15,472,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440,764.65 : 18,661,146.98 = 10,315,000.65 : x
  2. Step 2: Convert to fraction form
    12,440,764.65/18,661,146.98 = 10,315,000.65/x
  3. Step 3: Cross multiply
    12,440,764.65x = 18,661,146.98 × 10,315,000.65
  4. Step 4: Simplify right side
    12,440,764.65x = 192,489,743,176,870.56
  5. Step 5: Solve for x
    x = 192,489,743,176,870.56/12,440,764.65
  6. Step 6: Final answer
    x = 15,472,500.98

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Double scale
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Similar ratio
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1.5x scale

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.