Home / 218,311,054.12-301,405,217.70-138,970,882.27

Finding the Fourth Proportional to 218,311,054.12, 301,405,217.70 and 138,970,882.27

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Solution

The fourth proportional to 218,311,054.12, 301,405,217.70 and 138,970,882.27 is: 191,866,367.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,311,054.12 : 301,405,217.70 = 138,970,882.27 : x
  2. Step 2: Convert to fraction form
    218,311,054.12/301,405,217.70 = 138,970,882.27/x
  3. Step 3: Cross multiply
    218,311,054.12x = 301,405,217.70 × 138,970,882.27
  4. Step 4: Simplify right side
    218,311,054.12x = 41,886,549,024,550,424
  5. Step 5: Solve for x
    x = 41,886,549,024,550,424/218,311,054.12
  6. Step 6: Final answer
    x = 191,866,367.89

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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.