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Finding the Fourth Proportional to 752,332,556.80, 1,128,498,835.20 and 671,978,677.60

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Solution

The fourth proportional to 752,332,556.80, 1,128,498,835.20 and 671,978,677.60 is: 1,007,968,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,332,556.80 : 1,128,498,835.20 = 671,978,677.60 : x
  2. Step 2: Convert to fraction form
    752,332,556.80/1,128,498,835.20 = 671,978,677.60/x
  3. Step 3: Cross multiply
    752,332,556.80x = 1,128,498,835.20 × 671,978,677.60
  4. Step 4: Simplify right side
    752,332,556.80x = 758,327,154,950,836,352
  5. Step 5: Solve for x
    x = 758,327,154,950,836,352/752,332,556.80
  6. Step 6: Final answer
    x = 1,007,968,016.40

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1.5x scale

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.