Home / 127,630,676.53-176,127,941.39-78,067,409.38

Finding the Fourth Proportional to 127,630,676.53, 176,127,941.39 and 78,067,409.38

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Solution

The fourth proportional to 127,630,676.53, 176,127,941.39 and 78,067,409.38 is: 107,731,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,630,676.53 : 176,127,941.39 = 78,067,409.38 : x
  2. Step 2: Convert to fraction form
    127,630,676.53/176,127,941.39 = 78,067,409.38/x
  3. Step 3: Cross multiply
    127,630,676.53x = 176,127,941.39 × 78,067,409.38
  4. Step 4: Simplify right side
    127,630,676.53x = 13,749,852,103,504,626
  5. Step 5: Solve for x
    x = 13,749,852,103,504,626/127,630,676.53
  6. Step 6: Final answer
    x = 107,731,561.70

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1.5x scale

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.