Home / 257,904,800.10-386,857,200.15-171,362,585.70

Finding the Fourth Proportional to 257,904,800.10, 386,857,200.15 and 171,362,585.70

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Solution

The fourth proportional to 257,904,800.10, 386,857,200.15 and 171,362,585.70 is: 257,043,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,904,800.10 : 386,857,200.15 = 171,362,585.70 : x
  2. Step 2: Convert to fraction form
    257,904,800.10/386,857,200.15 = 171,362,585.70/x
  3. Step 3: Cross multiply
    257,904,800.10x = 386,857,200.15 × 171,362,585.70
  4. Step 4: Simplify right side
    257,904,800.10x = 66,292,850,114,366,416
  5. Step 5: Solve for x
    x = 66,292,850,114,366,416/257,904,800.10
  6. Step 6: Final answer
    x = 257,043,878.55

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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.