Home / 85,206,645.20-127,809,967.80-71,601,755.60

Finding the Fourth Proportional to 85,206,645.20, 127,809,967.80 and 71,601,755.60

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Solution

The fourth proportional to 85,206,645.20, 127,809,967.80 and 71,601,755.60 is: 107,402,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,206,645.20 : 127,809,967.80 = 71,601,755.60 : x
  2. Step 2: Convert to fraction form
    85,206,645.20/127,809,967.80 = 71,601,755.60/x
  3. Step 3: Cross multiply
    85,206,645.20x = 127,809,967.80 × 71,601,755.60
  4. Step 4: Simplify right side
    85,206,645.20x = 9,151,418,077,659,468
  5. Step 5: Solve for x
    x = 9,151,418,077,659,468/85,206,645.20
  6. Step 6: Final answer
    x = 107,402,633.40

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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.