Home / 347,641,013.40-521,461,520.10-218,339,449.80

Finding the Fourth Proportional to 347,641,013.40, 521,461,520.10 and 218,339,449.80

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Solution

The fourth proportional to 347,641,013.40, 521,461,520.10 and 218,339,449.80 is: 327,509,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,641,013.40 : 521,461,520.10 = 218,339,449.80 : x
  2. Step 2: Convert to fraction form
    347,641,013.40/521,461,520.10 = 218,339,449.80/x
  3. Step 3: Cross multiply
    347,641,013.40x = 521,461,520.10 × 218,339,449.80
  4. Step 4: Simplify right side
    347,641,013.40x = 113,855,621,390,505,648
  5. Step 5: Solve for x
    x = 113,855,621,390,505,648/347,641,013.40
  6. Step 6: Final answer
    x = 327,509,174.70

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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.