Home / 392,695,622.40-541,921,595.76-216,479,746.56

Finding the Fourth Proportional to 392,695,622.40, 541,921,595.76 and 216,479,746.56

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Solution

The fourth proportional to 392,695,622.40, 541,921,595.76 and 216,479,746.56 is: 298,742,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,695,622.40 : 541,921,595.76 = 216,479,746.56 : x
  2. Step 2: Convert to fraction form
    392,695,622.40/541,921,595.76 = 216,479,746.56/x
  3. Step 3: Cross multiply
    392,695,622.40x = 541,921,595.76 × 216,479,746.56
  4. Step 4: Simplify right side
    392,695,622.40x = 117,315,049,705,515,568
  5. Step 5: Solve for x
    x = 117,315,049,705,515,568/392,695,622.40
  6. Step 6: Final answer
    x = 298,742,952.59

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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.