Home / 8,321,858.90-12,461,793.15-6,642,242.90

Finding the Fourth Proportional to 8,321,858.90, 12,461,793.15 and 6,642,242.90

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Solution

The fourth proportional to 8,321,858.90, 12,461,793.15 and 6,642,242.90 is: 9,946,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,858.90 : 12,461,793.15 = 6,642,242.90 : x
  2. Step 2: Convert to fraction form
    8,321,858.90/12,461,793.15 = 6,642,242.90/x
  3. Step 3: Cross multiply
    8,321,858.90x = 12,461,793.15 × 6,642,242.90
  4. Step 4: Simplify right side
    8,321,858.90x = 82,774,257,071,856.14
  5. Step 5: Solve for x
    x = 82,774,257,071,856.14/8,321,858.90
  6. Step 6: Final answer
    x = 9,946,606.65

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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.