Home / 689,743,139.20-1,034,758,478.40-229,824,188.80

Finding the Fourth Proportional to 689,743,139.20, 1,034,758,478.40 and 229,824,188.80

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Solution

The fourth proportional to 689,743,139.20, 1,034,758,478.40 and 229,824,188.80 is: 344,784,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,743,139.20 : 1,034,758,478.40 = 229,824,188.80 : x
  2. Step 2: Convert to fraction form
    689,743,139.20/1,034,758,478.40 = 229,824,188.80/x
  3. Step 3: Cross multiply
    689,743,139.20x = 1,034,758,478.40 × 229,824,188.80
  4. Step 4: Simplify right side
    689,743,139.20x = 237,812,527,902,202,336
  5. Step 5: Solve for x
    x = 237,812,527,902,202,336/689,743,139.20
  6. Step 6: Final answer
    x = 344,784,187.60

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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.