Home / 12,948,609.20-19,422,913.80-8,690,817.20

Finding the Fourth Proportional to 12,948,609.20, 19,422,913.80 and 8,690,817.20

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Solution

The fourth proportional to 12,948,609.20, 19,422,913.80 and 8,690,817.20 is: 13,036,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,609.20 : 19,422,913.80 = 8,690,817.20 : x
  2. Step 2: Convert to fraction form
    12,948,609.20/19,422,913.80 = 8,690,817.20/x
  3. Step 3: Cross multiply
    12,948,609.20x = 19,422,913.80 × 8,690,817.20
  4. Step 4: Simplify right side
    12,948,609.20x = 168,800,993,327,157.34
  5. Step 5: Solve for x
    x = 168,800,993,327,157.34/12,948,609.20
  6. Step 6: Final answer
    x = 13,036,225.80

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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.