Home / 12,828,861.30-17,697,116.60-7,932,518.22

Finding the Fourth Proportional to 12,828,861.30, 17,697,116.60 and 7,932,518.22

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Solution

The fourth proportional to 12,828,861.30, 17,697,116.60 and 7,932,518.22 is: 10,942,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828,861.30 : 17,697,116.60 = 7,932,518.22 : x
  2. Step 2: Convert to fraction form
    12,828,861.30/17,697,116.60 = 7,932,518.22/x
  3. Step 3: Cross multiply
    12,828,861.30x = 17,697,116.60 × 7,932,518.22
  4. Step 4: Simplify right side
    12,828,861.30x = 140,382,699,870,964.45
  5. Step 5: Solve for x
    x = 140,382,699,870,964.45/12,828,861.30
  6. Step 6: Final answer
    x = 10,942,724.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.