Home / 147,109,504.91-203,011,116.01-85,265,715.74

Finding the Fourth Proportional to 147,109,504.91, 203,011,116.01 and 85,265,715.74

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Solution

The fourth proportional to 147,109,504.91, 203,011,116.01 and 85,265,715.74 is: 117,666,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,109,504.91 : 203,011,116.01 = 85,265,715.74 : x
  2. Step 2: Convert to fraction form
    147,109,504.91/203,011,116.01 = 85,265,715.74/x
  3. Step 3: Cross multiply
    147,109,504.91x = 203,011,116.01 × 85,265,715.74
  4. Step 4: Simplify right side
    147,109,504.91x = 17,309,888,108,540,602
  5. Step 5: Solve for x
    x = 17,309,888,108,540,602/147,109,504.91
  6. Step 6: Final answer
    x = 117,666,687.27

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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.