Home / 511,528,336.16-705,747,961.33-313,082,949.92

Finding the Fourth Proportional to 511,528,336.16, 705,747,961.33 and 313,082,949.92

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Solution

The fourth proportional to 511,528,336.16, 705,747,961.33 and 313,082,949.92 is: 431,955,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,528,336.16 : 705,747,961.33 = 313,082,949.92 : x
  2. Step 2: Convert to fraction form
    511,528,336.16/705,747,961.33 = 313,082,949.92/x
  3. Step 3: Cross multiply
    511,528,336.16x = 705,747,961.33 × 313,082,949.92
  4. Step 4: Simplify right side
    511,528,336.16x = 220,957,653,628,911,040
  5. Step 5: Solve for x
    x = 220,957,653,628,911,040/511,528,336.16
  6. Step 6: Final answer
    x = 431,955,842.93

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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.