Home / 147,495,036.10-203,543,119.06-81,415,517.12

Finding the Fourth Proportional to 147,495,036.10, 203,543,119.06 and 81,415,517.12

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Solution

The fourth proportional to 147,495,036.10, 203,543,119.06 and 81,415,517.12 is: 112,353,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,495,036.10 : 203,543,119.06 = 81,415,517.12 : x
  2. Step 2: Convert to fraction form
    147,495,036.10/203,543,119.06 = 81,415,517.12/x
  3. Step 3: Cross multiply
    147,495,036.10x = 203,543,119.06 × 81,415,517.12
  4. Step 4: Simplify right side
    147,495,036.10x = 16,571,568,293,916,074
  5. Step 5: Solve for x
    x = 16,571,568,293,916,074/147,495,036.10
  6. Step 6: Final answer
    x = 112,353,396.65

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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.