Home / 659,305,048.80-988,957,573.20-199,314,213.60

Finding the Fourth Proportional to 659,305,048.80, 988,957,573.20 and 199,314,213.60

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Solution

The fourth proportional to 659,305,048.80, 988,957,573.20 and 199,314,213.60 is: 298,971,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,305,048.80 : 988,957,573.20 = 199,314,213.60 : x
  2. Step 2: Convert to fraction form
    659,305,048.80/988,957,573.20 = 199,314,213.60/x
  3. Step 3: Cross multiply
    659,305,048.80x = 988,957,573.20 × 199,314,213.60
  4. Step 4: Simplify right side
    659,305,048.80x = 197,113,300,986,122,432
  5. Step 5: Solve for x
    x = 197,113,300,986,122,432/659,305,048.80
  6. Step 6: Final answer
    x = 298,971,320.40

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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.