Home / 90,558,047.70-135,837,071.55-84,180,755.70

Finding the Fourth Proportional to 90,558,047.70, 135,837,071.55 and 84,180,755.70

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Solution

The fourth proportional to 90,558,047.70, 135,837,071.55 and 84,180,755.70 is: 126,271,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,558,047.70 : 135,837,071.55 = 84,180,755.70 : x
  2. Step 2: Convert to fraction form
    90,558,047.70/135,837,071.55 = 84,180,755.70/x
  3. Step 3: Cross multiply
    90,558,047.70x = 135,837,071.55 × 84,180,755.70
  4. Step 4: Simplify right side
    90,558,047.70x = 11,434,867,335,153,972
  5. Step 5: Solve for x
    x = 11,434,867,335,153,972/90,558,047.70
  6. Step 6: Final answer
    x = 126,271,133.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.