Home / 259,206,376.27-388,809,938.60-105,852,432.71

Finding the Fourth Proportional to 259,206,376.27, 388,809,938.60 and 105,852,432.71

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Solution

The fourth proportional to 259,206,376.27, 388,809,938.60 and 105,852,432.71 is: 158,778,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,206,376.27 : 388,809,938.60 = 105,852,432.71 : x
  2. Step 2: Convert to fraction form
    259,206,376.27/388,809,938.60 = 105,852,432.71/x
  3. Step 3: Cross multiply
    259,206,376.27x = 388,809,938.60 × 105,852,432.71
  4. Step 4: Simplify right side
    259,206,376.27x = 41,156,477,862,635,728
  5. Step 5: Solve for x
    x = 41,156,477,862,635,728/259,206,376.27
  6. Step 6: Final answer
    x = 158,778,801.88

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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.