Home / 620,288,505.46-855,998,315.42-338,031,025.47

Finding the Fourth Proportional to 620,288,505.46, 855,998,315.42 and 338,031,025.47

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Solution

The fourth proportional to 620,288,505.46, 855,998,315.42 and 338,031,025.47 is: 466,482,912.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,288,505.46 : 855,998,315.42 = 338,031,025.47 : x
  2. Step 2: Convert to fraction form
    620,288,505.46/855,998,315.42 = 338,031,025.47/x
  3. Step 3: Cross multiply
    620,288,505.46x = 855,998,315.42 × 338,031,025.47
  4. Step 4: Simplify right side
    620,288,505.46x = 289,353,988,356,044,928
  5. Step 5: Solve for x
    x = 289,353,988,356,044,928/620,288,505.46
  6. Step 6: Final answer
    x = 466,482,912.08

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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.