Home / 990,727,270.80-1,486,090,906.20-531,562,246.80

Finding the Fourth Proportional to 990,727,270.80, 1,486,090,906.20 and 531,562,246.80

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Solution

The fourth proportional to 990,727,270.80, 1,486,090,906.20 and 531,562,246.80 is: 797,343,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,727,270.80 : 1,486,090,906.20 = 531,562,246.80 : x
  2. Step 2: Convert to fraction form
    990,727,270.80/1,486,090,906.20 = 531,562,246.80/x
  3. Step 3: Cross multiply
    990,727,270.80x = 1,486,090,906.20 × 531,562,246.80
  4. Step 4: Simplify right side
    990,727,270.80x = 789,949,821,048,720,128
  5. Step 5: Solve for x
    x = 789,949,821,048,720,128/990,727,270.80
  6. Step 6: Final answer
    x = 797,343,370.20

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Double scale
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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.