Home / 15,786,883.69-21,785,899.52-8,543,539.69

Finding the Fourth Proportional to 15,786,883.69, 21,785,899.52 and 8,543,539.69

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Solution

The fourth proportional to 15,786,883.69, 21,785,899.52 and 8,543,539.69 is: 11,790,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,883.69 : 21,785,899.52 = 8,543,539.69 : x
  2. Step 2: Convert to fraction form
    15,786,883.69/21,785,899.52 = 8,543,539.69/x
  3. Step 3: Cross multiply
    15,786,883.69x = 21,785,899.52 × 8,543,539.69
  4. Step 4: Simplify right side
    15,786,883.69x = 186,128,697,198,366.06
  5. Step 5: Solve for x
    x = 186,128,697,198,366.06/15,786,883.69
  6. Step 6: Final answer
    x = 11,790,084.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.