Home / 199,589,615.20-299,384,422.80-145,841,903.20

Finding the Fourth Proportional to 199,589,615.20, 299,384,422.80 and 145,841,903.20

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Solution

The fourth proportional to 199,589,615.20, 299,384,422.80 and 145,841,903.20 is: 218,762,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,589,615.20 : 299,384,422.80 = 145,841,903.20 : x
  2. Step 2: Convert to fraction form
    199,589,615.20/299,384,422.80 = 145,841,903.20/x
  3. Step 3: Cross multiply
    199,589,615.20x = 299,384,422.80 × 145,841,903.20
  4. Step 4: Simplify right side
    199,589,615.20x = 43,662,794,009,585,472
  5. Step 5: Solve for x
    x = 43,662,794,009,585,472/199,589,615.20
  6. Step 6: Final answer
    x = 218,762,854.80

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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.