Home / 31,524,381.72-43,502,660.28-18,480,328.45

Finding the Fourth Proportional to 31,524,381.72, 43,502,660.28 and 18,480,328.45

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Solution

The fourth proportional to 31,524,381.72, 43,502,660.28 and 18,480,328.45 is: 25,502,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,524,381.72 : 43,502,660.28 = 18,480,328.45 : x
  2. Step 2: Convert to fraction form
    31,524,381.72/43,502,660.28 = 18,480,328.45/x
  3. Step 3: Cross multiply
    31,524,381.72x = 43,502,660.28 × 18,480,328.45
  4. Step 4: Simplify right side
    31,524,381.72x = 803,943,450,113,254
  5. Step 5: Solve for x
    x = 803,943,450,113,254/31,524,381.72
  6. Step 6: Final answer
    x = 25,502,274.95

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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.