Home / 720,591,812,638.86-994,445,371,849.26-395,442,740,294.76

Finding the Fourth Proportional to 720,591,812,638.86, 994,445,371,849.26 and 395,442,740,294.76

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Solution

The fourth proportional to 720,591,812,638.86, 994,445,371,849.26 and 395,442,740,294.76 is: 545,726,715,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,591,812,638.86 : 994,445,371,849.26 = 395,442,740,294.76 : x
  2. Step 2: Convert to fraction form
    720,591,812,638.86/994,445,371,849.26 = 395,442,740,294.76/x
  3. Step 3: Cross multiply
    720,591,812,638.86x = 994,445,371,849.26 × 395,442,740,294.76
  4. Step 4: Simplify right side
    720,591,812,638.86x = 393,246,202,917,512,953,200,640
  5. Step 5: Solve for x
    x = 393,246,202,917,512,953,200,640/720,591,812,638.86
  6. Step 6: Final answer
    x = 545,726,715,208.46

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Double scale
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1.5x scale

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.