Home / 285,079,327.30-393,409,471.71-154,699,135.30

Finding the Fourth Proportional to 285,079,327.30, 393,409,471.71 and 154,699,135.30

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Solution

The fourth proportional to 285,079,327.30, 393,409,471.71 and 154,699,135.30 is: 213,484,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,079,327.30 : 393,409,471.71 = 154,699,135.30 : x
  2. Step 2: Convert to fraction form
    285,079,327.30/393,409,471.71 = 154,699,135.30/x
  3. Step 3: Cross multiply
    285,079,327.30x = 393,409,471.71 × 154,699,135.30
  4. Step 4: Simplify right side
    285,079,327.30x = 60,860,105,092,366,816
  5. Step 5: Solve for x
    x = 60,860,105,092,366,816/285,079,327.30
  6. Step 6: Final answer
    x = 213,484,806.73

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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.