Home / 2,921,970,739.20-4,382,894,702.42-711,192,786.72

Finding the Fourth Proportional to 2,921,970,739.20, 4,382,894,702.42 and 711,192,786.72

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Solution

The fourth proportional to 2,921,970,739.20, 4,382,894,702.42 and 711,192,786.72 is: 1,066,774,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921,970,739.20 : 4,382,894,702.42 = 711,192,786.72 : x
  2. Step 2: Convert to fraction form
    2,921,970,739.20/4,382,894,702.42 = 711,192,786.72/x
  3. Step 3: Cross multiply
    2,921,970,739.20x = 4,382,894,702.42 × 711,192,786.72
  4. Step 4: Simplify right side
    2,921,970,739.20x = 3,117,083,097,314,404,864
  5. Step 5: Solve for x
    x = 3,117,083,097,314,404,864/2,921,970,739.20
  6. Step 6: Final answer
    x = 1,066,774,234.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.