Home / 40,012,384.32-55,217,144.75-21,677,669.82

Finding the Fourth Proportional to 40,012,384.32, 55,217,144.75 and 21,677,669.82

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Solution

The fourth proportional to 40,012,384.32, 55,217,144.75 and 21,677,669.82 is: 29,915,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,012,384.32 : 55,217,144.75 = 21,677,669.82 : x
  2. Step 2: Convert to fraction form
    40,012,384.32/55,217,144.75 = 21,677,669.82/x
  3. Step 3: Cross multiply
    40,012,384.32x = 55,217,144.75 × 21,677,669.82
  4. Step 4: Simplify right side
    40,012,384.32x = 1,196,979,032,185,258
  5. Step 5: Solve for x
    x = 1,196,979,032,185,258/40,012,384.32
  6. Step 6: Final answer
    x = 29,915,213.82

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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.