Home / 8,688,039.20-13,019,228.40-6,296,919.20

Finding the Fourth Proportional to 8,688,039.20, 13,019,228.40 and 6,296,919.20

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Solution

The fourth proportional to 8,688,039.20, 13,019,228.40 and 6,296,919.20 is: 9,436,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,039.20 : 13,019,228.40 = 6,296,919.20 : x
  2. Step 2: Convert to fraction form
    8,688,039.20/13,019,228.40 = 6,296,919.20/x
  3. Step 3: Cross multiply
    8,688,039.20x = 13,019,228.40 × 6,296,919.20
  4. Step 4: Simplify right side
    8,688,039.20x = 81,981,029,281,145.28
  5. Step 5: Solve for x
    x = 81,981,029,281,145.28/8,688,039.20
  6. Step 6: Final answer
    x = 9,436,079.58

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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.