Home / 13,611,946.20-20,417,919.30-12,123,911.40

Finding the Fourth Proportional to 13,611,946.20, 20,417,919.30 and 12,123,911.40

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Solution

The fourth proportional to 13,611,946.20, 20,417,919.30 and 12,123,911.40 is: 18,185,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,946.20 : 20,417,919.30 = 12,123,911.40 : x
  2. Step 2: Convert to fraction form
    13,611,946.20/20,417,919.30 = 12,123,911.40/x
  3. Step 3: Cross multiply
    13,611,946.20x = 20,417,919.30 × 12,123,911.40
  4. Step 4: Simplify right side
    13,611,946.20x = 247,545,044,565,550.03
  5. Step 5: Solve for x
    x = 247,545,044,565,550.03/13,611,946.20
  6. Step 6: Final answer
    x = 18,185,867.10

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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.