Home / 649,938,859.54-896,915,626.12-371,486,361.78

Finding the Fourth Proportional to 649,938,859.54, 896,915,626.12 and 371,486,361.78

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Solution

The fourth proportional to 649,938,859.54, 896,915,626.12 and 371,486,361.78 is: 512,651,179.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,859.54 : 896,915,626.12 = 371,486,361.78 : x
  2. Step 2: Convert to fraction form
    649,938,859.54/896,915,626.12 = 371,486,361.78/x
  3. Step 3: Cross multiply
    649,938,859.54x = 896,915,626.12 × 371,486,361.78
  4. Step 4: Simplify right side
    649,938,859.54x = 333,191,922,771,413,888
  5. Step 5: Solve for x
    x = 333,191,922,771,413,888/649,938,859.54
  6. Step 6: Final answer
    x = 512,651,179.23

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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.