Home / 8,321,621.40-12,461,436.90-6,642,005.40

Finding the Fourth Proportional to 8,321,621.40, 12,461,436.90 and 6,642,005.40

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Solution

The fourth proportional to 8,321,621.40, 12,461,436.90 and 6,642,005.40 is: 9,946,250.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,621.40 : 12,461,436.90 = 6,642,005.40 : x
  2. Step 2: Convert to fraction form
    8,321,621.40/12,461,436.90 = 6,642,005.40/x
  3. Step 3: Cross multiply
    8,321,621.40x = 12,461,436.90 × 6,642,005.40
  4. Step 4: Simplify right side
    8,321,621.40x = 82,768,931,181,559.27
  5. Step 5: Solve for x
    x = 82,768,931,181,559.27/8,321,621.40
  6. Step 6: Final answer
    x = 9,946,250.52

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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.