Home / 784,024,315.20-1,175,946,891.84-209,640,432.96

Finding the Fourth Proportional to 784,024,315.20, 1,175,946,891.84 and 209,640,432.96

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Solution

The fourth proportional to 784,024,315.20, 1,175,946,891.84 and 209,640,432.96 is: 314,436,696.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,024,315.20 : 1,175,946,891.84 = 209,640,432.96 : x
  2. Step 2: Convert to fraction form
    784,024,315.20/1,175,946,891.84 = 209,640,432.96/x
  3. Step 3: Cross multiply
    784,024,315.20x = 1,175,946,891.84 × 209,640,432.96
  4. Step 4: Simplify right side
    784,024,315.20x = 246,526,015,543,303,872
  5. Step 5: Solve for x
    x = 246,526,015,543,303,872/784,024,315.20
  6. Step 6: Final answer
    x = 314,436,696.37

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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.