Home / 13,286,821.60-19,939,563.60-8,506,136.80

Finding the Fourth Proportional to 13,286,821.60, 19,939,563.60 and 8,506,136.80

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Solution

The fourth proportional to 13,286,821.60, 19,939,563.60 and 8,506,136.80 is: 12,765,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,821.60 : 19,939,563.60 = 8,506,136.80 : x
  2. Step 2: Convert to fraction form
    13,286,821.60/19,939,563.60 = 8,506,136.80/x
  3. Step 3: Cross multiply
    13,286,821.60x = 19,939,563.60 × 8,506,136.80
  4. Step 4: Simplify right side
    13,286,821.60x = 169,608,655,713,900.50
  5. Step 5: Solve for x
    x = 169,608,655,713,900.50/13,286,821.60
  6. Step 6: Final answer
    x = 12,765,178.97

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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.