Home / 171,088,010.60-256,632,015.90-78,971,570.60

Finding the Fourth Proportional to 171,088,010.60, 256,632,015.90 and 78,971,570.60

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Solution

The fourth proportional to 171,088,010.60, 256,632,015.90 and 78,971,570.60 is: 118,457,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,088,010.60 : 256,632,015.90 = 78,971,570.60 : x
  2. Step 2: Convert to fraction form
    171,088,010.60/256,632,015.90 = 78,971,570.60/x
  3. Step 3: Cross multiply
    171,088,010.60x = 256,632,015.90 × 78,971,570.60
  4. Step 4: Simplify right side
    171,088,010.60x = 20,266,633,361,867,172
  5. Step 5: Solve for x
    x = 20,266,633,361,867,172/171,088,010.60
  6. Step 6: Final answer
    x = 118,457,355.90

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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.