Home / 40,465,385.90-55,842,192.95-21,880,481.66

Finding the Fourth Proportional to 40,465,385.90, 55,842,192.95 and 21,880,481.66

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Solution

The fourth proportional to 40,465,385.90, 55,842,192.95 and 21,880,481.66 is: 30,195,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465,385.90 : 55,842,192.95 = 21,880,481.66 : x
  2. Step 2: Convert to fraction form
    40,465,385.90/55,842,192.95 = 21,880,481.66/x
  3. Step 3: Cross multiply
    40,465,385.90x = 55,842,192.95 × 21,880,481.66
  4. Step 4: Simplify right side
    40,465,385.90x = 1,221,854,078,308,043
  5. Step 5: Solve for x
    x = 1,221,854,078,308,043/40,465,385.90
  6. Step 6: Final answer
    x = 30,195,043.28

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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.