Home / 202,286,510.71-279,155,385.11-109,467,018.55

Finding the Fourth Proportional to 202,286,510.71, 279,155,385.11 and 109,467,018.55

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Solution

The fourth proportional to 202,286,510.71, 279,155,385.11 and 109,467,018.55 is: 151,064,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,286,510.71 : 279,155,385.11 = 109,467,018.55 : x
  2. Step 2: Convert to fraction form
    202,286,510.71/279,155,385.11 = 109,467,018.55/x
  3. Step 3: Cross multiply
    202,286,510.71x = 279,155,385.11 × 109,467,018.55
  4. Step 4: Simplify right side
    202,286,510.71x = 30,558,307,720,168,764
  5. Step 5: Solve for x
    x = 30,558,307,720,168,764/202,286,510.71
  6. Step 6: Final answer
    x = 151,064,485.78

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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.