Home / 128,662,656.46-177,555,837.48-69,925,324.61

Finding the Fourth Proportional to 128,662,656.46, 177,555,837.48 and 69,925,324.61

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Solution

The fourth proportional to 128,662,656.46, 177,555,837.48 and 69,925,324.61 is: 96,497,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,656.46 : 177,555,837.48 = 69,925,324.61 : x
  2. Step 2: Convert to fraction form
    128,662,656.46/177,555,837.48 = 69,925,324.61/x
  3. Step 3: Cross multiply
    128,662,656.46x = 177,555,837.48 × 69,925,324.61
  4. Step 4: Simplify right side
    128,662,656.46x = 12,415,649,572,371,072
  5. Step 5: Solve for x
    x = 12,415,649,572,371,072/128,662,656.46
  6. Step 6: Final answer
    x = 96,497,693.38

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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.