Home / 18,705,919.80-28,053,047.70-7,349,849.40

Finding the Fourth Proportional to 18,705,919.80, 28,053,047.70 and 7,349,849.40

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Solution

The fourth proportional to 18,705,919.80, 28,053,047.70 and 7,349,849.40 is: 11,022,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705,919.80 : 28,053,047.70 = 7,349,849.40 : x
  2. Step 2: Convert to fraction form
    18,705,919.80/28,053,047.70 = 7,349,849.40/x
  3. Step 3: Cross multiply
    18,705,919.80x = 28,053,047.70 × 7,349,849.40
  4. Step 4: Simplify right side
    18,705,919.80x = 206,185,675,806,016.38
  5. Step 5: Solve for x
    x = 206,185,675,806,016.38/18,705,919.80
  6. Step 6: Final answer
    x = 11,022,482.62

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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.