Home / 256,401,155.15-353,955,592.88-171,773,991.86

Finding the Fourth Proportional to 256,401,155.15, 353,955,592.88 and 171,773,991.86

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Solution

The fourth proportional to 256,401,155.15, 353,955,592.88 and 171,773,991.86 is: 237,129,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,401,155.15 : 353,955,592.88 = 171,773,991.86 : x
  2. Step 2: Convert to fraction form
    256,401,155.15/353,955,592.88 = 171,773,991.86/x
  3. Step 3: Cross multiply
    256,401,155.15x = 353,955,592.88 × 171,773,991.86
  4. Step 4: Simplify right side
    256,401,155.15x = 60,800,365,127,541,944
  5. Step 5: Solve for x
    x = 60,800,365,127,541,944/256,401,155.15
  6. Step 6: Final answer
    x = 237,129,840.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.