Home / 128,662,657.46-177,555,838.86-69,925,325.61

Finding the Fourth Proportional to 128,662,657.46, 177,555,838.86 and 69,925,325.61

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Solution

The fourth proportional to 128,662,657.46, 177,555,838.86 and 69,925,325.61 is: 96,497,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,657.46 : 177,555,838.86 = 69,925,325.61 : x
  2. Step 2: Convert to fraction form
    128,662,657.46/177,555,838.86 = 69,925,325.61/x
  3. Step 3: Cross multiply
    128,662,657.46x = 177,555,838.86 × 69,925,325.61
  4. Step 4: Simplify right side
    128,662,657.46x = 12,415,649,846,242,192
  5. Step 5: Solve for x
    x = 12,415,649,846,242,192/128,662,657.46
  6. Step 6: Final answer
    x = 96,497,694.76

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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.