Home / 12,809,939.70-19,214,909.55-12,257,066.10

Finding the Fourth Proportional to 12,809,939.70, 19,214,909.55 and 12,257,066.10

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Solution

The fourth proportional to 12,809,939.70, 19,214,909.55 and 12,257,066.10 is: 18,385,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809,939.70 : 19,214,909.55 = 12,257,066.10 : x
  2. Step 2: Convert to fraction form
    12,809,939.70/19,214,909.55 = 12,257,066.10/x
  3. Step 3: Cross multiply
    12,809,939.70x = 19,214,909.55 × 12,257,066.10
  4. Step 4: Simplify right side
    12,809,939.70x = 235,518,416,459,871.25
  5. Step 5: Solve for x
    x = 235,518,416,459,871.25/12,809,939.70
  6. Step 6: Final answer
    x = 18,385,599.15

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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.