Home / 90,273,936.24-135,330,597.72-39,128,054.40

Finding the Fourth Proportional to 90,273,936.24, 135,330,597.72 and 39,128,054.40

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Solution

The fourth proportional to 90,273,936.24, 135,330,597.72 and 39,128,054.40 is: 58,657,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,273,936.24 : 135,330,597.72 = 39,128,054.40 : x
  2. Step 2: Convert to fraction form
    90,273,936.24/135,330,597.72 = 39,128,054.40/x
  3. Step 3: Cross multiply
    90,273,936.24x = 135,330,597.72 × 39,128,054.40
  4. Step 4: Simplify right side
    90,273,936.24x = 5,295,222,989,572,676
  5. Step 5: Solve for x
    x = 5,295,222,989,572,676/90,273,936.24
  6. Step 6: Final answer
    x = 58,657,273.74

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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.