Home / 6,315,157.89-8,712,928.44-3,865,214.88

Finding the Fourth Proportional to 6,315,157.89, 8,712,928.44 and 3,865,214.88

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Solution

The fourth proportional to 6,315,157.89, 8,712,928.44 and 3,865,214.88 is: 5,332,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315,157.89 : 8,712,928.44 = 3,865,214.88 : x
  2. Step 2: Convert to fraction form
    6,315,157.89/8,712,928.44 = 3,865,214.88/x
  3. Step 3: Cross multiply
    6,315,157.89x = 8,712,928.44 × 3,865,214.88
  4. Step 4: Simplify right side
    6,315,157.89x = 33,677,340,654,663.18
  5. Step 5: Solve for x
    x = 33,677,340,654,663.18/6,315,157.89
  6. Step 6: Final answer
    x = 5,332,778.89

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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.