Home / 538,831,984.60-808,247,976.90-422,605,837.90

Finding the Fourth Proportional to 538,831,984.60, 808,247,976.90 and 422,605,837.90

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Solution

The fourth proportional to 538,831,984.60, 808,247,976.90 and 422,605,837.90 is: 633,908,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,831,984.60 : 808,247,976.90 = 422,605,837.90 : x
  2. Step 2: Convert to fraction form
    538,831,984.60/808,247,976.90 = 422,605,837.90/x
  3. Step 3: Cross multiply
    538,831,984.60x = 808,247,976.90 × 422,605,837.90
  4. Step 4: Simplify right side
    538,831,984.60x = 341,570,313,508,804,288
  5. Step 5: Solve for x
    x = 341,570,313,508,804,288/538,831,984.60
  6. Step 6: Final answer
    x = 633,908,756.85

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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.