Home / 259,169,006.87-388,851,418.70-155,610,420.71

Finding the Fourth Proportional to 259,169,006.87, 388,851,418.70 and 155,610,420.71

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Solution

The fourth proportional to 259,169,006.87, 388,851,418.70 and 155,610,420.71 is: 233,474,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,169,006.87 : 388,851,418.70 = 155,610,420.71 : x
  2. Step 2: Convert to fraction form
    259,169,006.87/388,851,418.70 = 155,610,420.71/x
  3. Step 3: Cross multiply
    259,169,006.87x = 388,851,418.70 × 155,610,420.71
  4. Step 4: Simplify right side
    259,169,006.87x = 60,509,332,855,450,152
  5. Step 5: Solve for x
    x = 60,509,332,855,450,152/259,169,006.87
  6. Step 6: Final answer
    x = 233,474,417.28

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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.