Home / 28,901,412.73-39,884,496.78-15,847,893.15

Finding the Fourth Proportional to 28,901,412.73, 39,884,496.78 and 15,847,893.15

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Solution

The fourth proportional to 28,901,412.73, 39,884,496.78 and 15,847,893.15 is: 21,870,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901,412.73 : 39,884,496.78 = 15,847,893.15 : x
  2. Step 2: Convert to fraction form
    28,901,412.73/39,884,496.78 = 15,847,893.15/x
  3. Step 3: Cross multiply
    28,901,412.73x = 39,884,496.78 × 15,847,893.15
  4. Step 4: Simplify right side
    28,901,412.73x = 632,085,243,310,959.12
  5. Step 5: Solve for x
    x = 632,085,243,310,959.12/28,901,412.73
  6. Step 6: Final answer
    x = 21,870,392.61

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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.