Home / 701,580,947.76-968,169,963.90-388,308,454.92

Finding the Fourth Proportional to 701,580,947.76, 968,169,963.90 and 388,308,454.92

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Solution

The fourth proportional to 701,580,947.76, 968,169,963.90 and 388,308,454.92 is: 535,859,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,580,947.76 : 968,169,963.90 = 388,308,454.92 : x
  2. Step 2: Convert to fraction form
    701,580,947.76/968,169,963.90 = 388,308,454.92/x
  3. Step 3: Cross multiply
    701,580,947.76x = 968,169,963.90 × 388,308,454.92
  4. Step 4: Simplify right side
    701,580,947.76x = 375,948,582,781,961,216
  5. Step 5: Solve for x
    x = 375,948,582,781,961,216/701,580,947.76
  6. Step 6: Final answer
    x = 535,859,167.76

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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.