Home / 393,141,447.21-589,713,010.07-159,807,478.46

Finding the Fourth Proportional to 393,141,447.21, 589,713,010.07 and 159,807,478.46

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Solution

The fourth proportional to 393,141,447.21, 589,713,010.07 and 159,807,478.46 is: 239,711,558.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,141,447.21 : 589,713,010.07 = 159,807,478.46 : x
  2. Step 2: Convert to fraction form
    393,141,447.21/589,713,010.07 = 159,807,478.46/x
  3. Step 3: Cross multiply
    393,141,447.21x = 589,713,010.07 × 159,807,478.46
  4. Step 4: Simplify right side
    393,141,447.21x = 94,240,549,150,595,696
  5. Step 5: Solve for x
    x = 94,240,549,150,595,696/393,141,447.21
  6. Step 6: Final answer
    x = 239,711,558.83

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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.