Home / 147,219,507.20-203,154,629.46-81,139,805.24

Finding the Fourth Proportional to 147,219,507.20, 203,154,629.46 and 81,139,805.24

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Solution

The fourth proportional to 147,219,507.20, 203,154,629.46 and 81,139,805.24 is: 111,968,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,219,507.20 : 203,154,629.46 = 81,139,805.24 : x
  2. Step 2: Convert to fraction form
    147,219,507.20/203,154,629.46 = 81,139,805.24/x
  3. Step 3: Cross multiply
    147,219,507.20x = 203,154,629.46 × 81,139,805.24
  4. Step 4: Simplify right side
    147,219,507.20x = 16,483,927,067,988,766
  5. Step 5: Solve for x
    x = 16,483,927,067,988,766/147,219,507.20
  6. Step 6: Final answer
    x = 111,968,361.95

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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.