Home / 19,699,806.20-29,549,709.30-12,131,036.60

Finding the Fourth Proportional to 19,699,806.20, 29,549,709.30 and 12,131,036.60

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Solution

The fourth proportional to 19,699,806.20, 29,549,709.30 and 12,131,036.60 is: 18,196,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699,806.20 : 29,549,709.30 = 12,131,036.60 : x
  2. Step 2: Convert to fraction form
    19,699,806.20/29,549,709.30 = 12,131,036.60/x
  3. Step 3: Cross multiply
    19,699,806.20x = 29,549,709.30 × 12,131,036.60
  4. Step 4: Simplify right side
    19,699,806.20x = 358,468,605,037,660.38
  5. Step 5: Solve for x
    x = 358,468,605,037,660.38/19,699,806.20
  6. Step 6: Final answer
    x = 18,196,554.90

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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.