Home / 7,985,321.60-11,977,982.40-6,639,004.40

Finding the Fourth Proportional to 7,985,321.60, 11,977,982.40 and 6,639,004.40

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Solution

The fourth proportional to 7,985,321.60, 11,977,982.40 and 6,639,004.40 is: 9,958,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985,321.60 : 11,977,982.40 = 6,639,004.40 : x
  2. Step 2: Convert to fraction form
    7,985,321.60/11,977,982.40 = 6,639,004.40/x
  3. Step 3: Cross multiply
    7,985,321.60x = 11,977,982.40 × 6,639,004.40
  4. Step 4: Simplify right side
    7,985,321.60x = 79,521,877,856,722.56
  5. Step 5: Solve for x
    x = 79,521,877,856,722.56/7,985,321.60
  6. Step 6: Final answer
    x = 9,958,506.60

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1.5x scale

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.