Home / 659,660,310.41-989,270,737.72-266,085,486.77

Finding the Fourth Proportional to 659,660,310.41, 989,270,737.72 and 266,085,486.77

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Solution

The fourth proportional to 659,660,310.41, 989,270,737.72 and 266,085,486.77 is: 399,039,599.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,660,310.41 : 989,270,737.72 = 266,085,486.77 : x
  2. Step 2: Convert to fraction form
    659,660,310.41/989,270,737.72 = 266,085,486.77/x
  3. Step 3: Cross multiply
    659,660,310.41x = 989,270,737.72 × 266,085,486.77
  4. Step 4: Simplify right side
    659,660,310.41x = 263,230,585,787,931,616
  5. Step 5: Solve for x
    x = 263,230,585,787,931,616/659,660,310.41
  6. Step 6: Final answer
    x = 399,039,599.07

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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.