Home / 978,596,442.03-1,350,747,660.60-639,555,920.56

Finding the Fourth Proportional to 978,596,442.03, 1,350,747,660.60 and 639,555,920.56

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Solution

The fourth proportional to 978,596,442.03, 1,350,747,660.60 and 639,555,920.56 is: 882,773,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,596,442.03 : 1,350,747,660.60 = 639,555,920.56 : x
  2. Step 2: Convert to fraction form
    978,596,442.03/1,350,747,660.60 = 639,555,920.56/x
  3. Step 3: Cross multiply
    978,596,442.03x = 1,350,747,660.60 × 639,555,920.56
  4. Step 4: Simplify right side
    978,596,442.03x = 863,878,663,519,299,328
  5. Step 5: Solve for x
    x = 863,878,663,519,299,328/978,596,442.03
  6. Step 6: Final answer
    x = 882,773,149.81

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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.