Home / 228,412,052.38-315,207,754.21-123,989,210.29

Finding the Fourth Proportional to 228,412,052.38, 315,207,754.21 and 123,989,210.29

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Solution

The fourth proportional to 228,412,052.38, 315,207,754.21 and 123,989,210.29 is: 171,104,633.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,412,052.38 : 315,207,754.21 = 123,989,210.29 : x
  2. Step 2: Convert to fraction form
    228,412,052.38/315,207,754.21 = 123,989,210.29/x
  3. Step 3: Cross multiply
    228,412,052.38x = 315,207,754.21 × 123,989,210.29
  4. Step 4: Simplify right side
    228,412,052.38x = 39,082,360,521,633,264
  5. Step 5: Solve for x
    x = 39,082,360,521,633,264/228,412,052.38
  6. Step 6: Final answer
    x = 171,104,633.55

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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.