Home / 128,382,988.86-177,168,524.62-73,380,026.34

Finding the Fourth Proportional to 128,382,988.86, 177,168,524.62 and 73,380,026.34

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Solution

The fourth proportional to 128,382,988.86, 177,168,524.62 and 73,380,026.34 is: 101,264,436.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,382,988.86 : 177,168,524.62 = 73,380,026.34 : x
  2. Step 2: Convert to fraction form
    128,382,988.86/177,168,524.62 = 73,380,026.34/x
  3. Step 3: Cross multiply
    128,382,988.86x = 177,168,524.62 × 73,380,026.34
  4. Step 4: Simplify right side
    128,382,988.86x = 13,000,631,003,234,540
  5. Step 5: Solve for x
    x = 13,000,631,003,234,540/128,382,988.86
  6. Step 6: Final answer
    x = 101,264,436.35

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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.