Home / 128,662,782.46-177,556,011.05-69,925,450.61

Finding the Fourth Proportional to 128,662,782.46, 177,556,011.05 and 69,925,450.61

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Solution

The fourth proportional to 128,662,782.46, 177,556,011.05 and 69,925,450.61 is: 96,497,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,782.46 : 177,556,011.05 = 69,925,450.61 : x
  2. Step 2: Convert to fraction form
    128,662,782.46/177,556,011.05 = 69,925,450.61/x
  3. Step 3: Cross multiply
    128,662,782.46x = 177,556,011.05 × 69,925,450.61
  4. Step 4: Simplify right side
    128,662,782.46x = 12,415,684,081,804,094
  5. Step 5: Solve for x
    x = 12,415,684,081,804,094/128,662,782.46
  6. Step 6: Final answer
    x = 96,497,867.10

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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.