Home / 171,098,999.20-256,648,498.80-165,052,381.60

Finding the Fourth Proportional to 171,098,999.20, 256,648,498.80 and 165,052,381.60

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Solution

The fourth proportional to 171,098,999.20, 256,648,498.80 and 165,052,381.60 is: 247,578,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,098,999.20 : 256,648,498.80 = 165,052,381.60 : x
  2. Step 2: Convert to fraction form
    171,098,999.20/256,648,498.80 = 165,052,381.60/x
  3. Step 3: Cross multiply
    171,098,999.20x = 256,648,498.80 × 165,052,381.60
  4. Step 4: Simplify right side
    171,098,999.20x = 42,360,445,961,004,744
  5. Step 5: Solve for x
    x = 42,360,445,961,004,744/171,098,999.20
  6. Step 6: Final answer
    x = 247,578,572.40

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1.5x scale

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.