Home / 279,843,627.80-419,750,304.93-85,755,606.39

Finding the Fourth Proportional to 279,843,627.80, 419,750,304.93 and 85,755,606.39

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Solution

The fourth proportional to 279,843,627.80, 419,750,304.93 and 85,755,606.39 is: 128,628,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,843,627.80 : 419,750,304.93 = 85,755,606.39 : x
  2. Step 2: Convert to fraction form
    279,843,627.80/419,750,304.93 = 85,755,606.39/x
  3. Step 3: Cross multiply
    279,843,627.80x = 419,750,304.93 × 85,755,606.39
  4. Step 4: Simplify right side
    279,843,627.80x = 35,995,941,931,659,556
  5. Step 5: Solve for x
    x = 35,995,941,931,659,556/279,843,627.80
  6. Step 6: Final answer
    x = 128,628,771.05

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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.