Home / 71,857,321.29-99,163,005.39-40,917,490.47

Finding the Fourth Proportional to 71,857,321.29, 99,163,005.39 and 40,917,490.47

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Solution

The fourth proportional to 71,857,321.29, 99,163,005.39 and 40,917,490.47 is: 56,466,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,857,321.29 : 99,163,005.39 = 40,917,490.47 : x
  2. Step 2: Convert to fraction form
    71,857,321.29/99,163,005.39 = 40,917,490.47/x
  3. Step 3: Cross multiply
    71,857,321.29x = 99,163,005.39 × 40,917,490.47
  4. Step 4: Simplify right side
    71,857,321.29x = 4,057,501,328,021,883.50
  5. Step 5: Solve for x
    x = 4,057,501,328,021,883.50/71,857,321.29
  6. Step 6: Final answer
    x = 56,466,081.05

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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.