Home / 8,420,312.75-11,619,554.49-4,749,009.89

Finding the Fourth Proportional to 8,420,312.75, 11,619,554.49 and 4,749,009.89

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Solution

The fourth proportional to 8,420,312.75, 11,619,554.49 and 4,749,009.89 is: 6,553,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,312.75 : 11,619,554.49 = 4,749,009.89 : x
  2. Step 2: Convert to fraction form
    8,420,312.75/11,619,554.49 = 4,749,009.89/x
  3. Step 3: Cross multiply
    8,420,312.75x = 11,619,554.49 × 4,749,009.89
  4. Step 4: Simplify right side
    8,420,312.75x = 55,181,379,132,306.13
  5. Step 5: Solve for x
    x = 55,181,379,132,306.13/8,420,312.75
  6. Step 6: Final answer
    x = 6,553,364.56

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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.