Home / 257,904,665.60-386,856,998.40-171,362,451.20

Finding the Fourth Proportional to 257,904,665.60, 386,856,998.40 and 171,362,451.20

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Solution

The fourth proportional to 257,904,665.60, 386,856,998.40 and 171,362,451.20 is: 257,043,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,904,665.60 : 386,856,998.40 = 171,362,451.20 : x
  2. Step 2: Convert to fraction form
    257,904,665.60/386,856,998.40 = 171,362,451.20/x
  3. Step 3: Cross multiply
    257,904,665.60x = 386,856,998.40 × 171,362,451.20
  4. Step 4: Simplify right side
    257,904,665.60x = 66,292,763,509,698,472
  5. Step 5: Solve for x
    x = 66,292,763,509,698,472/257,904,665.60
  6. Step 6: Final answer
    x = 257,043,676.80

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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.