Home / 8,320,418.40-12,459,632.40-6,640,802.40

Finding the Fourth Proportional to 8,320,418.40, 12,459,632.40 and 6,640,802.40

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Solution

The fourth proportional to 8,320,418.40, 12,459,632.40 and 6,640,802.40 is: 9,944,446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,418.40 : 12,459,632.40 = 6,640,802.40 : x
  2. Step 2: Convert to fraction form
    8,320,418.40/12,459,632.40 = 6,640,802.40/x
  3. Step 3: Cross multiply
    8,320,418.40x = 12,459,632.40 × 6,640,802.40
  4. Step 4: Simplify right side
    8,320,418.40x = 82,741,956,745,037.77
  5. Step 5: Solve for x
    x = 82,741,956,745,037.77/8,320,418.40
  6. Step 6: Final answer
    x = 9,944,446.63

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1.5x scale

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.