Home / 147,186,278.44-203,118,426.52-81,109,141.40

Finding the Fourth Proportional to 147,186,278.44, 203,118,426.52 and 81,109,141.40

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Solution

The fourth proportional to 147,186,278.44, 203,118,426.52 and 81,109,141.40 is: 111,931,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,278.44 : 203,118,426.52 = 81,109,141.40 : x
  2. Step 2: Convert to fraction form
    147,186,278.44/203,118,426.52 = 81,109,141.40/x
  3. Step 3: Cross multiply
    147,186,278.44x = 203,118,426.52 × 81,109,141.40
  4. Step 4: Simplify right side
    147,186,278.44x = 16,474,761,177,861,214
  5. Step 5: Solve for x
    x = 16,474,761,177,861,214/147,186,278.44
  6. Step 6: Final answer
    x = 111,931,365.84

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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.