Home / 8,309,312.60-12,463,968.90-2,629,981.40

Finding the Fourth Proportional to 8,309,312.60, 12,463,968.90 and 2,629,981.40

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Solution

The fourth proportional to 8,309,312.60, 12,463,968.90 and 2,629,981.40 is: 3,944,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,312.60 : 12,463,968.90 = 2,629,981.40 : x
  2. Step 2: Convert to fraction form
    8,309,312.60/12,463,968.90 = 2,629,981.40/x
  3. Step 3: Cross multiply
    8,309,312.60x = 12,463,968.90 × 2,629,981.40
  4. Step 4: Simplify right side
    8,309,312.60x = 32,780,006,377,178.46
  5. Step 5: Solve for x
    x = 32,780,006,377,178.46/8,309,312.60
  6. Step 6: Final answer
    x = 3,944,972.10

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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.