Home / 678,517,709.68-936,394,436.21-510,958,348.21

Finding the Fourth Proportional to 678,517,709.68, 936,394,436.21 and 510,958,348.21

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Solution

The fourth proportional to 678,517,709.68, 936,394,436.21 and 510,958,348.21 is: 705,152,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,517,709.68 : 936,394,436.21 = 510,958,348.21 : x
  2. Step 2: Convert to fraction form
    678,517,709.68/936,394,436.21 = 510,958,348.21/x
  3. Step 3: Cross multiply
    678,517,709.68x = 936,394,436.21 × 510,958,348.21
  4. Step 4: Simplify right side
    678,517,709.68x = 478,458,554,398,895,808
  5. Step 5: Solve for x
    x = 478,458,554,398,895,808/678,517,709.68
  6. Step 6: Final answer
    x = 705,152,640.19

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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.