Home / 792,288,143.40-1,188,432,215.10-383,385,628.20

Finding the Fourth Proportional to 792,288,143.40, 1,188,432,215.10 and 383,385,628.20

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Solution

The fourth proportional to 792,288,143.40, 1,188,432,215.10 and 383,385,628.20 is: 575,078,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,288,143.40 : 1,188,432,215.10 = 383,385,628.20 : x
  2. Step 2: Convert to fraction form
    792,288,143.40/1,188,432,215.10 = 383,385,628.20/x
  3. Step 3: Cross multiply
    792,288,143.40x = 1,188,432,215.10 × 383,385,628.20
  4. Step 4: Simplify right side
    792,288,143.40x = 455,627,831,359,230,976
  5. Step 5: Solve for x
    x = 455,627,831,359,230,976/792,288,143.40
  6. Step 6: Final answer
    x = 575,078,442.30

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Double scale
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Similar ratio
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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.