Home / 12,699,821.28-19,052,356.40-4,180,668.96

Finding the Fourth Proportional to 12,699,821.28, 19,052,356.40 and 4,180,668.96

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Solution

The fourth proportional to 12,699,821.28, 19,052,356.40 and 4,180,668.96 is: 6,271,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,821.28 : 19,052,356.40 = 4,180,668.96 : x
  2. Step 2: Convert to fraction form
    12,699,821.28/19,052,356.40 = 4,180,668.96/x
  3. Step 3: Cross multiply
    12,699,821.28x = 19,052,356.40 × 4,180,668.96
  4. Step 4: Simplify right side
    12,699,821.28x = 79,651,595,016,337.34
  5. Step 5: Solve for x
    x = 79,651,595,016,337.34/12,699,821.28
  6. Step 6: Final answer
    x = 6,271,867.40

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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.