Home / 18,218,677.80-25,141,774.28-9,958,774.88

Finding the Fourth Proportional to 18,218,677.80, 25,141,774.28 and 9,958,774.88

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Solution

The fourth proportional to 18,218,677.80, 25,141,774.28 and 9,958,774.88 is: 13,743,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218,677.80 : 25,141,774.28 = 9,958,774.88 : x
  2. Step 2: Convert to fraction form
    18,218,677.80/25,141,774.28 = 9,958,774.88/x
  3. Step 3: Cross multiply
    18,218,677.80x = 25,141,774.28 × 9,958,774.88
  4. Step 4: Simplify right side
    18,218,677.80x = 250,381,270,138,294.12
  5. Step 5: Solve for x
    x = 250,381,270,138,294.12/18,218,677.80
  6. Step 6: Final answer
    x = 13,743,108.74

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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.