Home / 90,047,373-135,037,972.20-30,942,991.08

Finding the Fourth Proportional to 90,047,373, 135,037,972.20 and 30,942,991.08

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Solution

The fourth proportional to 90,047,373, 135,037,972.20 and 30,942,991.08 is: 46,403,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,047,373 : 135,037,972.20 = 30,942,991.08 : x
  2. Step 2: Convert to fraction form
    90,047,373/135,037,972.20 = 30,942,991.08/x
  3. Step 3: Cross multiply
    90,047,373x = 135,037,972.20 × 30,942,991.08
  4. Step 4: Simplify right side
    90,047,373x = 4,178,478,769,245,887.50
  5. Step 5: Solve for x
    x = 4,178,478,769,245,887.50/90,047,373
  6. Step 6: Final answer
    x = 46,403,116.83

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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.