Home / 15,391,870.92-21,231,527.22-10,164,927.18

Finding the Fourth Proportional to 15,391,870.92, 21,231,527.22 and 10,164,927.18

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Solution

The fourth proportional to 15,391,870.92, 21,231,527.22 and 10,164,927.18 is: 14,021,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,870.92 : 21,231,527.22 = 10,164,927.18 : x
  2. Step 2: Convert to fraction form
    15,391,870.92/21,231,527.22 = 10,164,927.18/x
  3. Step 3: Cross multiply
    15,391,870.92x = 21,231,527.22 × 10,164,927.18
  4. Step 4: Simplify right side
    15,391,870.92x = 215,816,928,111,487.81
  5. Step 5: Solve for x
    x = 215,816,928,111,487.81/15,391,870.92
  6. Step 6: Final answer
    x = 14,021,487.66

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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.