Home / 907,120,270.80-1,360,932,348.60-389,798,542.80

Finding the Fourth Proportional to 907,120,270.80, 1,360,932,348.60 and 389,798,542.80

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Solution

The fourth proportional to 907,120,270.80, 1,360,932,348.60 and 389,798,542.80 is: 584,806,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,120,270.80 : 1,360,932,348.60 = 389,798,542.80 : x
  2. Step 2: Convert to fraction form
    907,120,270.80/1,360,932,348.60 = 389,798,542.80/x
  3. Step 3: Cross multiply
    907,120,270.80x = 1,360,932,348.60 × 389,798,542.80
  4. Step 4: Simplify right side
    907,120,270.80x = 530,489,446,333,661,568
  5. Step 5: Solve for x
    x = 530,489,446,333,661,568/907,120,270.80
  6. Step 6: Final answer
    x = 584,806,076.34

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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.