Home / 128,662,848.56-177,556,103-69,925,517.04

Finding the Fourth Proportional to 128,662,848.56, 177,556,103 and 69,925,517.04

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Solution

The fourth proportional to 128,662,848.56, 177,556,103 and 69,925,517.04 is: 96,497,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,848.56 : 177,556,103 = 69,925,517.04 : x
  2. Step 2: Convert to fraction form
    128,662,848.56/177,556,103 = 69,925,517.04/x
  3. Step 3: Cross multiply
    128,662,848.56x = 177,556,103 × 69,925,517.04
  4. Step 4: Simplify right side
    128,662,848.56x = 12,415,702,305,882,496
  5. Step 5: Solve for x
    x = 12,415,702,305,882,496/128,662,848.56
  6. Step 6: Final answer
    x = 96,497,959.16

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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.