Home / 147,147,709.13-203,073,010.88-81,068,193.72

Finding the Fourth Proportional to 147,147,709.13, 203,073,010.88 and 81,068,193.72

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Solution

The fourth proportional to 147,147,709.13, 203,073,010.88 and 81,068,193.72 is: 111,879,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,147,709.13 : 203,073,010.88 = 81,068,193.72 : x
  2. Step 2: Convert to fraction form
    147,147,709.13/203,073,010.88 = 81,068,193.72/x
  3. Step 3: Cross multiply
    147,147,709.13x = 203,073,010.88 × 81,068,193.72
  4. Step 4: Simplify right side
    147,147,709.13x = 16,462,762,186,174,034
  5. Step 5: Solve for x
    x = 16,462,762,186,174,034/147,147,709.13
  6. Step 6: Final answer
    x = 111,879,160.63

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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.