Home / 990,783,977.10-1,486,175,965.65-664,266,626.70

Finding the Fourth Proportional to 990,783,977.10, 1,486,175,965.65 and 664,266,626.70

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Solution

The fourth proportional to 990,783,977.10, 1,486,175,965.65 and 664,266,626.70 is: 996,399,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,783,977.10 : 1,486,175,965.65 = 664,266,626.70 : x
  2. Step 2: Convert to fraction form
    990,783,977.10/1,486,175,965.65 = 664,266,626.70/x
  3. Step 3: Cross multiply
    990,783,977.10x = 1,486,175,965.65 × 664,266,626.70
  4. Step 4: Simplify right side
    990,783,977.10x = 987,217,095,384,940,672
  5. Step 5: Solve for x
    x = 987,217,095,384,940,672/990,783,977.10
  6. Step 6: Final answer
    x = 996,399,940.05

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1.5x scale

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.