Home / 18,971,496.80-28,448,385.60-6,839,362.40

Finding the Fourth Proportional to 18,971,496.80, 28,448,385.60 and 6,839,362.40

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Solution

The fourth proportional to 18,971,496.80, 28,448,385.60 and 6,839,362.40 is: 10,255,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971,496.80 : 28,448,385.60 = 6,839,362.40 : x
  2. Step 2: Convert to fraction form
    18,971,496.80/28,448,385.60 = 6,839,362.40/x
  3. Step 3: Cross multiply
    18,971,496.80x = 28,448,385.60 × 6,839,362.40
  4. Step 4: Simplify right side
    18,971,496.80x = 194,568,818,813,341.47
  5. Step 5: Solve for x
    x = 194,568,818,813,341.47/18,971,496.80
  6. Step 6: Final answer
    x = 10,255,849.65

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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.