Home / 128,760,081.60-193,140,122.40-114,651,307.20

Finding the Fourth Proportional to 128,760,081.60, 193,140,122.40 and 114,651,307.20

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Solution

The fourth proportional to 128,760,081.60, 193,140,122.40 and 114,651,307.20 is: 171,976,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,760,081.60 : 193,140,122.40 = 114,651,307.20 : x
  2. Step 2: Convert to fraction form
    128,760,081.60/193,140,122.40 = 114,651,307.20/x
  3. Step 3: Cross multiply
    128,760,081.60x = 193,140,122.40 × 114,651,307.20
  4. Step 4: Simplify right side
    128,760,081.60x = 22,143,767,505,928,004
  5. Step 5: Solve for x
    x = 22,143,767,505,928,004/128,760,081.60
  6. Step 6: Final answer
    x = 171,976,960.80

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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.