Home / 498,741,563.40-688,149,162.12-297,759,321.96

Finding the Fourth Proportional to 498,741,563.40, 688,149,162.12 and 297,759,321.96

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Solution

The fourth proportional to 498,741,563.40, 688,149,162.12 and 297,759,321.96 is: 410,839,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,741,563.40 : 688,149,162.12 = 297,759,321.96 : x
  2. Step 2: Convert to fraction form
    498,741,563.40/688,149,162.12 = 297,759,321.96/x
  3. Step 3: Cross multiply
    498,741,563.40x = 688,149,162.12 × 297,759,321.96
  4. Step 4: Simplify right side
    498,741,563.40x = 204,902,827,920,193,312
  5. Step 5: Solve for x
    x = 204,902,827,920,193,312/498,741,563.40
  6. Step 6: Final answer
    x = 410,839,687.24

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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.