Home / 781,782,198.59-1,078,855,261.01-424,546,852.62

Finding the Fourth Proportional to 781,782,198.59, 1,078,855,261.01 and 424,546,852.62

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Solution

The fourth proportional to 781,782,198.59, 1,078,855,261.01 and 424,546,852.62 is: 585,872,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,782,198.59 : 1,078,855,261.01 = 424,546,852.62 : x
  2. Step 2: Convert to fraction form
    781,782,198.59/1,078,855,261.01 = 424,546,852.62/x
  3. Step 3: Cross multiply
    781,782,198.59x = 1,078,855,261.01 × 424,546,852.62
  4. Step 4: Simplify right side
    781,782,198.59x = 458,024,605,494,324,096
  5. Step 5: Solve for x
    x = 458,024,605,494,324,096/781,782,198.59
  6. Step 6: Final answer
    x = 585,872,390.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.