Home / 20,852,149.71-31,279,926.69-10,472,030.37

Finding the Fourth Proportional to 20,852,149.71, 31,279,926.69 and 10,472,030.37

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Solution

The fourth proportional to 20,852,149.71, 31,279,926.69 and 10,472,030.37 is: 15,708,900.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852,149.71 : 31,279,926.69 = 10,472,030.37 : x
  2. Step 2: Convert to fraction form
    20,852,149.71/31,279,926.69 = 10,472,030.37/x
  3. Step 3: Cross multiply
    20,852,149.71x = 31,279,926.69 × 10,472,030.37
  4. Step 4: Simplify right side
    20,852,149.71x = 327,564,342,269,053.56
  5. Step 5: Solve for x
    x = 327,564,342,269,053.56/20,852,149.71
  6. Step 6: Final answer
    x = 15,708,900.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.