Home / 279,155,004.68-418,777,955.76-82,438,315.76

Finding the Fourth Proportional to 279,155,004.68, 418,777,955.76 and 82,438,315.76

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Solution

The fourth proportional to 279,155,004.68, 418,777,955.76 and 82,438,315.76 is: 123,670,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,155,004.68 : 418,777,955.76 = 82,438,315.76 : x
  2. Step 2: Convert to fraction form
    279,155,004.68/418,777,955.76 = 82,438,315.76/x
  3. Step 3: Cross multiply
    279,155,004.68x = 418,777,955.76 × 82,438,315.76
  4. Step 4: Simplify right side
    279,155,004.68x = 34,523,349,350,270,192
  5. Step 5: Solve for x
    x = 34,523,349,350,270,192/279,155,004.68
  6. Step 6: Final answer
    x = 123,670,895.28

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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.