Home / 821,670,869.60-1,133,244,633.57-722,339,232.20

Finding the Fourth Proportional to 821,670,869.60, 1,133,244,633.57 and 722,339,232.20

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Solution

The fourth proportional to 821,670,869.60, 1,133,244,633.57 and 722,339,232.20 is: 996,246,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,670,869.60 : 1,133,244,633.57 = 722,339,232.20 : x
  2. Step 2: Convert to fraction form
    821,670,869.60/1,133,244,633.57 = 722,339,232.20/x
  3. Step 3: Cross multiply
    821,670,869.60x = 1,133,244,633.57 × 722,339,232.20
  4. Step 4: Simplify right side
    821,670,869.60x = 818,587,058,507,724,160
  5. Step 5: Solve for x
    x = 818,587,058,507,724,160/821,670,869.60
  6. Step 6: Final answer
    x = 996,246,902.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.