Home / 5,258,679.40-7,889,200.89-1,664,661.88

Finding the Fourth Proportional to 5,258,679.40, 7,889,200.89 and 1,664,661.88

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Solution

The fourth proportional to 5,258,679.40, 7,889,200.89 and 1,664,661.88 is: 2,497,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258,679.40 : 7,889,200.89 = 1,664,661.88 : x
  2. Step 2: Convert to fraction form
    5,258,679.40/7,889,200.89 = 1,664,661.88/x
  3. Step 3: Cross multiply
    5,258,679.40x = 7,889,200.89 × 1,664,661.88
  4. Step 4: Simplify right side
    5,258,679.40x = 13,132,851,985,245.07
  5. Step 5: Solve for x
    x = 13,132,851,985,245.07/5,258,679.40
  6. Step 6: Final answer
    x = 2,497,366.92

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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.