Home / 147,147,717.02-203,073,021.77-81,068,201.60

Finding the Fourth Proportional to 147,147,717.02, 203,073,021.77 and 81,068,201.60

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Solution

The fourth proportional to 147,147,717.02, 203,073,021.77 and 81,068,201.60 is: 111,879,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,147,717.02 : 203,073,021.77 = 81,068,201.60 : x
  2. Step 2: Convert to fraction form
    147,147,717.02/203,073,021.77 = 81,068,201.60/x
  3. Step 3: Cross multiply
    147,147,717.02x = 203,073,021.77 × 81,068,201.60
  4. Step 4: Simplify right side
    147,147,717.02x = 16,462,764,666,950,842
  5. Step 5: Solve for x
    x = 16,462,764,666,950,842/147,147,717.02
  6. Step 6: Final answer
    x = 111,879,171.49

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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.