Home / 218,311,053.12-301,405,216.32-138,970,881.27

Finding the Fourth Proportional to 218,311,053.12, 301,405,216.32 and 138,970,881.27

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Solution

The fourth proportional to 218,311,053.12, 301,405,216.32 and 138,970,881.27 is: 191,866,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,311,053.12 : 301,405,216.32 = 138,970,881.27 : x
  2. Step 2: Convert to fraction form
    218,311,053.12/301,405,216.32 = 138,970,881.27/x
  3. Step 3: Cross multiply
    218,311,053.12x = 301,405,216.32 × 138,970,881.27
  4. Step 4: Simplify right side
    218,311,053.12x = 41,886,548,531,365,392
  5. Step 5: Solve for x
    x = 41,886,548,531,365,392/218,311,053.12
  6. Step 6: Final answer
    x = 191,866,366.51

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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.