Home / 257,520,916.56-386,451,539.70-121,245,272.40

Finding the Fourth Proportional to 257,520,916.56, 386,451,539.70 and 121,245,272.40

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Solution

The fourth proportional to 257,520,916.56, 386,451,539.70 and 121,245,272.40 is: 181,948,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,520,916.56 : 386,451,539.70 = 121,245,272.40 : x
  2. Step 2: Convert to fraction form
    257,520,916.56/386,451,539.70 = 121,245,272.40/x
  3. Step 3: Cross multiply
    257,520,916.56x = 386,451,539.70 × 121,245,272.40
  4. Step 4: Simplify right side
    257,520,916.56x = 46,855,422,200,325,912
  5. Step 5: Solve for x
    x = 46,855,422,200,325,912/257,520,916.56
  6. Step 6: Final answer
    x = 181,948,025.14

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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.