Home / 14,156,768.65-21,131,803.19-12,147,921.67

Finding the Fourth Proportional to 14,156,768.65, 21,131,803.19 and 12,147,921.67

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Solution

The fourth proportional to 14,156,768.65, 21,131,803.19 and 12,147,921.67 is: 18,133,198.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156,768.65 : 21,131,803.19 = 12,147,921.67 : x
  2. Step 2: Convert to fraction form
    14,156,768.65/21,131,803.19 = 12,147,921.67/x
  3. Step 3: Cross multiply
    14,156,768.65x = 21,131,803.19 × 12,147,921.67
  4. Step 4: Simplify right side
    14,156,768.65x = 256,707,489,897,976.16
  5. Step 5: Solve for x
    x = 256,707,489,897,976.16/14,156,768.65
  6. Step 6: Final answer
    x = 18,133,198.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.