Home / 12,787,487.10-19,181,230.65-8,009,912.70

Finding the Fourth Proportional to 12,787,487.10, 19,181,230.65 and 8,009,912.70

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Solution

The fourth proportional to 12,787,487.10, 19,181,230.65 and 8,009,912.70 is: 12,014,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,487.10 : 19,181,230.65 = 8,009,912.70 : x
  2. Step 2: Convert to fraction form
    12,787,487.10/19,181,230.65 = 8,009,912.70/x
  3. Step 3: Cross multiply
    12,787,487.10x = 19,181,230.65 × 8,009,912.70
  4. Step 4: Simplify right side
    12,787,487.10x = 153,639,982,985,064.25
  5. Step 5: Solve for x
    x = 153,639,982,985,064.25/12,787,487.10
  6. Step 6: Final answer
    x = 12,014,869.05

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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.