Home / 40,036,139.82-55,248,392.25-21,701,031.66

Finding the Fourth Proportional to 40,036,139.82, 55,248,392.25 and 21,701,031.66

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Solution

The fourth proportional to 40,036,139.82, 55,248,392.25 and 21,701,031.66 is: 29,946,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,036,139.82 : 55,248,392.25 = 21,701,031.66 : x
  2. Step 2: Convert to fraction form
    40,036,139.82/55,248,392.25 = 21,701,031.66/x
  3. Step 3: Cross multiply
    40,036,139.82x = 55,248,392.25 × 21,701,031.66
  4. Step 4: Simplify right side
    40,036,139.82x = 1,198,947,109,381,348.75
  5. Step 5: Solve for x
    x = 1,198,947,109,381,348.75/40,036,139.82
  6. Step 6: Final answer
    x = 29,946,621.10

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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.