Home / 8,490,854.43-12,716,878.91-6,665,063.40

Finding the Fourth Proportional to 8,490,854.43, 12,716,878.91 and 6,665,063.40

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Solution

The fourth proportional to 8,490,854.43, 12,716,878.91 and 6,665,063.40 is: 9,982,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490,854.43 : 12,716,878.91 = 6,665,063.40 : x
  2. Step 2: Convert to fraction form
    8,490,854.43/12,716,878.91 = 6,665,063.40/x
  3. Step 3: Cross multiply
    8,490,854.43x = 12,716,878.91 × 6,665,063.40
  4. Step 4: Simplify right side
    8,490,854.43x = 84,758,804,151,947.58
  5. Step 5: Solve for x
    x = 84,758,804,151,947.58/8,490,854.43
  6. Step 6: Final answer
    x = 9,982,364.54

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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.