Home / 202,631,038.20-279,631,071.78-109,811,545.80

Finding the Fourth Proportional to 202,631,038.20, 279,631,071.78 and 109,811,545.80

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Solution

The fourth proportional to 202,631,038.20, 279,631,071.78 and 109,811,545.80 is: 151,540,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,631,038.20 : 279,631,071.78 = 109,811,545.80 : x
  2. Step 2: Convert to fraction form
    202,631,038.20/279,631,071.78 = 109,811,545.80/x
  3. Step 3: Cross multiply
    202,631,038.20x = 279,631,071.78 × 109,811,545.80
  4. Step 4: Simplify right side
    202,631,038.20x = 30,706,720,245,872,552
  5. Step 5: Solve for x
    x = 30,706,720,245,872,552/202,631,038.20
  6. Step 6: Final answer
    x = 151,540,062.76

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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.