Home / 629,861,429.40-944,792,144.10-543,697,128.60

Finding the Fourth Proportional to 629,861,429.40, 944,792,144.10 and 543,697,128.60

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Solution

The fourth proportional to 629,861,429.40, 944,792,144.10 and 543,697,128.60 is: 815,545,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,861,429.40 : 944,792,144.10 = 543,697,128.60 : x
  2. Step 2: Convert to fraction form
    629,861,429.40/944,792,144.10 = 543,697,128.60/x
  3. Step 3: Cross multiply
    629,861,429.40x = 944,792,144.10 × 543,697,128.60
  4. Step 4: Simplify right side
    629,861,429.40x = 513,680,775,871,007,488
  5. Step 5: Solve for x
    x = 513,680,775,871,007,488/629,861,429.40
  6. Step 6: Final answer
    x = 815,545,692.90

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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.