Home / 257,517,057.60-386,344,015.20-111,888,129.60

Finding the Fourth Proportional to 257,517,057.60, 386,344,015.20 and 111,888,129.60

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Solution

The fourth proportional to 257,517,057.60, 386,344,015.20 and 111,888,129.60 is: 167,861,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,517,057.60 : 386,344,015.20 = 111,888,129.60 : x
  2. Step 2: Convert to fraction form
    257,517,057.60/386,344,015.20 = 111,888,129.60/x
  3. Step 3: Cross multiply
    257,517,057.60x = 386,344,015.20 × 111,888,129.60
  4. Step 4: Simplify right side
    257,517,057.60x = 43,227,309,242,881,968
  5. Step 5: Solve for x
    x = 43,227,309,242,881,968/257,517,057.60
  6. Step 6: Final answer
    x = 167,861,925.91

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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.