Home / 28,755,263.70-43,132,895.55-21,196,991.70

Finding the Fourth Proportional to 28,755,263.70, 43,132,895.55 and 21,196,991.70

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Solution

The fourth proportional to 28,755,263.70, 43,132,895.55 and 21,196,991.70 is: 31,795,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755,263.70 : 43,132,895.55 = 21,196,991.70 : x
  2. Step 2: Convert to fraction form
    28,755,263.70/43,132,895.55 = 21,196,991.70/x
  3. Step 3: Cross multiply
    28,755,263.70x = 43,132,895.55 × 21,196,991.70
  4. Step 4: Simplify right side
    28,755,263.70x = 914,287,628,970,316.88
  5. Step 5: Solve for x
    x = 914,287,628,970,316.88/28,755,263.70
  6. Step 6: Final answer
    x = 31,795,487.55

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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.