Home / 259,206,378.27-388,809,941.60-105,852,434.71

Finding the Fourth Proportional to 259,206,378.27, 388,809,941.60 and 105,852,434.71

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Solution

The fourth proportional to 259,206,378.27, 388,809,941.60 and 105,852,434.71 is: 158,778,804.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,206,378.27 : 388,809,941.60 = 105,852,434.71 : x
  2. Step 2: Convert to fraction form
    259,206,378.27/388,809,941.60 = 105,852,434.71/x
  3. Step 3: Cross multiply
    259,206,378.27x = 388,809,941.60 × 105,852,434.71
  4. Step 4: Simplify right side
    259,206,378.27x = 41,156,478,957,812,912
  5. Step 5: Solve for x
    x = 41,156,478,957,812,912/259,206,378.27
  6. Step 6: Final answer
    x = 158,778,804.88

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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.