Home / 18,162,816.84-25,064,882.87-9,902,811.74

Finding the Fourth Proportional to 18,162,816.84, 25,064,882.87 and 9,902,811.74

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Solution

The fourth proportional to 18,162,816.84, 25,064,882.87 and 9,902,811.74 is: 13,665,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162,816.84 : 25,064,882.87 = 9,902,811.74 : x
  2. Step 2: Convert to fraction form
    18,162,816.84/25,064,882.87 = 9,902,811.74/x
  3. Step 3: Cross multiply
    18,162,816.84x = 25,064,882.87 × 9,902,811.74
  4. Step 4: Simplify right side
    18,162,816.84x = 248,212,816,171,922.38
  5. Step 5: Solve for x
    x = 248,212,816,171,922.38/18,162,816.84
  6. Step 6: Final answer
    x = 13,665,986.85

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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.