Home / 784,081,531.20-1,175,838,861.60-395,775,307.20

Finding the Fourth Proportional to 784,081,531.20, 1,175,838,861.60 and 395,775,307.20

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Solution

The fourth proportional to 784,081,531.20, 1,175,838,861.60 and 395,775,307.20 is: 593,519,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,081,531.20 : 1,175,838,861.60 = 395,775,307.20 : x
  2. Step 2: Convert to fraction form
    784,081,531.20/1,175,838,861.60 = 395,775,307.20/x
  3. Step 3: Cross multiply
    784,081,531.20x = 1,175,838,861.60 × 395,775,307.20
  4. Step 4: Simplify right side
    784,081,531.20x = 465,367,986,667,438,208
  5. Step 5: Solve for x
    x = 465,367,986,667,438,208/784,081,531.20
  6. Step 6: Final answer
    x = 593,519,893.21

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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.