Home / 215,549,828.40-323,324,742.60-79,217,497.20

Finding the Fourth Proportional to 215,549,828.40, 323,324,742.60 and 79,217,497.20

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Solution

The fourth proportional to 215,549,828.40, 323,324,742.60 and 79,217,497.20 is: 118,826,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,549,828.40 : 323,324,742.60 = 79,217,497.20 : x
  2. Step 2: Convert to fraction form
    215,549,828.40/323,324,742.60 = 79,217,497.20/x
  3. Step 3: Cross multiply
    215,549,828.40x = 323,324,742.60 × 79,217,497.20
  4. Step 4: Simplify right side
    215,549,828.40x = 25,612,976,891,606,224
  5. Step 5: Solve for x
    x = 25,612,976,891,606,224/215,549,828.40
  6. Step 6: Final answer
    x = 118,826,245.80

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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.