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Finding the Fourth Proportional to 81,869,080.80, 122,641,880.40 and 41,508,530.40

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Solution

The fourth proportional to 81,869,080.80, 122,641,880.40 and 41,508,530.40 is: 62,180,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869,080.80 : 122,641,880.40 = 41,508,530.40 : x
  2. Step 2: Convert to fraction form
    81,869,080.80/122,641,880.40 = 41,508,530.40/x
  3. Step 3: Cross multiply
    81,869,080.80x = 122,641,880.40 × 41,508,530.40
  4. Step 4: Simplify right side
    81,869,080.80x = 5,090,684,220,896,564
  5. Step 5: Solve for x
    x = 5,090,684,220,896,564/81,869,080.80
  6. Step 6: Final answer
    x = 62,180,791.22

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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.