Home / 90,133,887.51-135,181,911.99-25,422,559.32

Finding the Fourth Proportional to 90,133,887.51, 135,181,911.99 and 25,422,559.32

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Solution

The fourth proportional to 90,133,887.51, 135,181,911.99 and 25,422,559.32 is: 38,128,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,133,887.51 : 135,181,911.99 = 25,422,559.32 : x
  2. Step 2: Convert to fraction form
    90,133,887.51/135,181,911.99 = 25,422,559.32/x
  3. Step 3: Cross multiply
    90,133,887.51x = 135,181,911.99 × 25,422,559.32
  4. Step 4: Simplify right side
    90,133,887.51x = 3,436,670,176,556,794.50
  5. Step 5: Solve for x
    x = 3,436,670,176,556,794.50/90,133,887.51
  6. Step 6: Final answer
    x = 38,128,502.74

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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.