Home / 12,476,142.40-18,700,216.80-6,408,529.60

Finding the Fourth Proportional to 12,476,142.40, 18,700,216.80 and 6,408,529.60

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Solution

The fourth proportional to 12,476,142.40, 18,700,216.80 and 6,408,529.60 is: 9,605,604.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,142.40 : 18,700,216.80 = 6,408,529.60 : x
  2. Step 2: Convert to fraction form
    12,476,142.40/18,700,216.80 = 6,408,529.60/x
  3. Step 3: Cross multiply
    12,476,142.40x = 18,700,216.80 × 6,408,529.60
  4. Step 4: Simplify right side
    12,476,142.40x = 119,840,892,889,217.28
  5. Step 5: Solve for x
    x = 119,840,892,889,217.28/12,476,142.40
  6. Step 6: Final answer
    x = 9,605,604.77

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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.