Home / 228,412,053.38-315,207,755.59-123,989,211.29

Finding the Fourth Proportional to 228,412,053.38, 315,207,755.59 and 123,989,211.29

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Solution

The fourth proportional to 228,412,053.38, 315,207,755.59 and 123,989,211.29 is: 171,104,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,412,053.38 : 315,207,755.59 = 123,989,211.29 : x
  2. Step 2: Convert to fraction form
    228,412,053.38/315,207,755.59 = 123,989,211.29/x
  3. Step 3: Cross multiply
    228,412,053.38x = 315,207,755.59 × 123,989,211.29
  4. Step 4: Simplify right side
    228,412,053.38x = 39,082,361,008,095,184
  5. Step 5: Solve for x
    x = 39,082,361,008,095,184/228,412,053.38
  6. Step 6: Final answer
    x = 171,104,634.93

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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.