Home / 2,812,206.35-4,218,528.15-919,139.15

Finding the Fourth Proportional to 2,812,206.35, 4,218,528.15 and 919,139.15

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Solution

The fourth proportional to 2,812,206.35, 4,218,528.15 and 919,139.15 is: 1,378,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812,206.35 : 4,218,528.15 = 919,139.15 : x
  2. Step 2: Convert to fraction form
    2,812,206.35/4,218,528.15 = 919,139.15/x
  3. Step 3: Cross multiply
    2,812,206.35x = 4,218,528.15 × 919,139.15
  4. Step 4: Simplify right side
    2,812,206.35x = 3,877,414,356,949.43
  5. Step 5: Solve for x
    x = 3,877,414,356,949.43/2,812,206.35
  6. Step 6: Final answer
    x = 1,378,780.18

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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.