Home / 13,356,934.56-18,418,628.88-7,923,376.80

Finding the Fourth Proportional to 13,356,934.56, 18,418,628.88 and 7,923,376.80

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Solution

The fourth proportional to 13,356,934.56, 18,418,628.88 and 7,923,376.80 is: 10,925,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356,934.56 : 18,418,628.88 = 7,923,376.80 : x
  2. Step 2: Convert to fraction form
    13,356,934.56/18,418,628.88 = 7,923,376.80/x
  3. Step 3: Cross multiply
    13,356,934.56x = 18,418,628.88 × 7,923,376.80
  4. Step 4: Simplify right side
    13,356,934.56x = 145,937,736,755,601.97
  5. Step 5: Solve for x
    x = 145,937,736,755,601.97/13,356,934.56
  6. Step 6: Final answer
    x = 10,925,990.25

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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.