Home / 260,380,840.80-390,571,261.20-202,916,200.80

Finding the Fourth Proportional to 260,380,840.80, 390,571,261.20 and 202,916,200.80

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Solution

The fourth proportional to 260,380,840.80, 390,571,261.20 and 202,916,200.80 is: 304,374,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,380,840.80 : 390,571,261.20 = 202,916,200.80 : x
  2. Step 2: Convert to fraction form
    260,380,840.80/390,571,261.20 = 202,916,200.80/x
  3. Step 3: Cross multiply
    260,380,840.80x = 390,571,261.20 × 202,916,200.80
  4. Step 4: Simplify right side
    260,380,840.80x = 79,253,236,464,368,448
  5. Step 5: Solve for x
    x = 79,253,236,464,368,448/260,380,840.80
  6. Step 6: Final answer
    x = 304,374,301.20

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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.