Home / 1,176,621,806.20-1,761,747,659.70-921,817,838.20

Finding the Fourth Proportional to 1,176,621,806.20, 1,761,747,659.70 and 921,817,838.20

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Solution

The fourth proportional to 1,176,621,806.20, 1,761,747,659.70 and 921,817,838.20 is: 1,380,231,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,621,806.20 : 1,761,747,659.70 = 921,817,838.20 : x
  2. Step 2: Convert to fraction form
    1,176,621,806.20/1,761,747,659.70 = 921,817,838.20/x
  3. Step 3: Cross multiply
    1,176,621,806.20x = 1,761,747,659.70 × 921,817,838.20
  4. Step 4: Simplify right side
    1,176,621,806.20x = 1,624,010,419,118,563,328
  5. Step 5: Solve for x
    x = 1,624,010,419,118,563,328/1,176,621,806.20
  6. Step 6: Final answer
    x = 1,380,231,447.83

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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.