Home / 147,628,910.29-203,723,949.13-81,547,986.32

Finding the Fourth Proportional to 147,628,910.29, 203,723,949.13 and 81,547,986.32

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Solution

The fourth proportional to 147,628,910.29, 203,723,949.13 and 81,547,986.32 is: 112,534,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,628,910.29 : 203,723,949.13 = 81,547,986.32 : x
  2. Step 2: Convert to fraction form
    147,628,910.29/203,723,949.13 = 81,547,986.32/x
  3. Step 3: Cross multiply
    147,628,910.29x = 203,723,949.13 × 81,547,986.32
  4. Step 4: Simplify right side
    147,628,910.29x = 16,613,277,815,283,256
  5. Step 5: Solve for x
    x = 16,613,277,815,283,256/147,628,910.29
  6. Step 6: Final answer
    x = 112,534,040.81

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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.