Home / 548,774,979.21-757,310,198.22-297,879,208.16

Finding the Fourth Proportional to 548,774,979.21, 757,310,198.22 and 297,879,208.16

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Solution

The fourth proportional to 548,774,979.21, 757,310,198.22 and 297,879,208.16 is: 411,073,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,774,979.21 : 757,310,198.22 = 297,879,208.16 : x
  2. Step 2: Convert to fraction form
    548,774,979.21/757,310,198.22 = 297,879,208.16/x
  3. Step 3: Cross multiply
    548,774,979.21x = 757,310,198.22 × 297,879,208.16
  4. Step 4: Simplify right side
    548,774,979.21x = 225,586,962,173,479,680
  5. Step 5: Solve for x
    x = 225,586,962,173,479,680/548,774,979.21
  6. Step 6: Final answer
    x = 411,073,701.83

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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.