Home / 10,642,457.80-15,965,760.30-4,251,622.60

Finding the Fourth Proportional to 10,642,457.80, 15,965,760.30 and 4,251,622.60

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Solution

The fourth proportional to 10,642,457.80, 15,965,760.30 and 4,251,622.60 is: 6,378,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642,457.80 : 15,965,760.30 = 4,251,622.60 : x
  2. Step 2: Convert to fraction form
    10,642,457.80/15,965,760.30 = 4,251,622.60/x
  3. Step 3: Cross multiply
    10,642,457.80x = 15,965,760.30 × 4,251,622.60
  4. Step 4: Simplify right side
    10,642,457.80x = 67,880,387,317,662.77
  5. Step 5: Solve for x
    x = 67,880,387,317,662.77/10,642,457.80
  6. Step 6: Final answer
    x = 6,378,262.30

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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.