Home / 612,813,378.60-919,304,048.70-203,826,882.60

Finding the Fourth Proportional to 612,813,378.60, 919,304,048.70 and 203,826,882.60

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Solution

The fourth proportional to 612,813,378.60, 919,304,048.70 and 203,826,882.60 is: 305,768,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,813,378.60 : 919,304,048.70 = 203,826,882.60 : x
  2. Step 2: Convert to fraction form
    612,813,378.60/919,304,048.70 = 203,826,882.60/x
  3. Step 3: Cross multiply
    612,813,378.60x = 919,304,048.70 × 203,826,882.60
  4. Step 4: Simplify right side
    612,813,378.60x = 187,378,878,408,079,584
  5. Step 5: Solve for x
    x = 187,378,878,408,079,584/612,813,378.60
  6. Step 6: Final answer
    x = 305,768,256.62

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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.