Home / 128,662,776.59-177,556,003.16-69,925,445.96

Finding the Fourth Proportional to 128,662,776.59, 177,556,003.16 and 69,925,445.96

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Solution

The fourth proportional to 128,662,776.59, 177,556,003.16 and 69,925,445.96 is: 96,497,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,776.59 : 177,556,003.16 = 69,925,445.96 : x
  2. Step 2: Convert to fraction form
    128,662,776.59/177,556,003.16 = 69,925,445.96/x
  3. Step 3: Cross multiply
    128,662,776.59x = 177,556,003.16 × 69,925,445.96
  4. Step 4: Simplify right side
    128,662,776.59x = 12,415,682,702,600,762
  5. Step 5: Solve for x
    x = 12,415,682,702,600,762/128,662,776.59
  6. Step 6: Final answer
    x = 96,497,860.78

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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.