Home / 100,039,238.44-138,054,149.08-54,254,150.44

Finding the Fourth Proportional to 100,039,238.44, 138,054,149.08 and 54,254,150.44

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Solution

The fourth proportional to 100,039,238.44, 138,054,149.08 and 54,254,150.44 is: 74,870,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,238.44 : 138,054,149.08 = 54,254,150.44 : x
  2. Step 2: Convert to fraction form
    100,039,238.44/138,054,149.08 = 54,254,150.44/x
  3. Step 3: Cross multiply
    100,039,238.44x = 138,054,149.08 × 54,254,150.44
  4. Step 4: Simplify right side
    100,039,238.44x = 7,490,010,572,571,736
  5. Step 5: Solve for x
    x = 7,490,010,572,571,736/100,039,238.44
  6. Step 6: Final answer
    x = 74,870,727.62

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1.5x scale

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.