Home / 990,839,440.20-1,486,737,457.20-699,078,331.20

Finding the Fourth Proportional to 990,839,440.20, 1,486,737,457.20 and 699,078,331.20

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Solution

The fourth proportional to 990,839,440.20, 1,486,737,457.20 and 699,078,331.20 is: 1,048,954,955.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,839,440.20 : 1,486,737,457.20 = 699,078,331.20 : x
  2. Step 2: Convert to fraction form
    990,839,440.20/1,486,737,457.20 = 699,078,331.20/x
  3. Step 3: Cross multiply
    990,839,440.20x = 1,486,737,457.20 × 699,078,331.20
  4. Step 4: Simplify right side
    990,839,440.20x = 1,039,345,940,511,907,584
  5. Step 5: Solve for x
    x = 1,039,345,940,511,907,584/990,839,440.20
  6. Step 6: Final answer
    x = 1,048,954,955.11

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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.