Home / 13,286,788.60-19,939,514.10-8,506,103.80

Finding the Fourth Proportional to 13,286,788.60, 19,939,514.10 and 8,506,103.80

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Solution

The fourth proportional to 13,286,788.60, 19,939,514.10 and 8,506,103.80 is: 12,765,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,788.60 : 19,939,514.10 = 8,506,103.80 : x
  2. Step 2: Convert to fraction form
    13,286,788.60/19,939,514.10 = 8,506,103.80/x
  3. Step 3: Cross multiply
    13,286,788.60x = 19,939,514.10 × 8,506,103.80
  4. Step 4: Simplify right side
    13,286,788.60x = 169,607,576,656,163.59
  5. Step 5: Solve for x
    x = 169,607,576,656,163.59/13,286,788.60
  6. Step 6: Final answer
    x = 12,765,129.47

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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.