Home / 153,311,221.40-229,966,832.10-80,499,867.80

Finding the Fourth Proportional to 153,311,221.40, 229,966,832.10 and 80,499,867.80

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Solution

The fourth proportional to 153,311,221.40, 229,966,832.10 and 80,499,867.80 is: 120,749,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,311,221.40 : 229,966,832.10 = 80,499,867.80 : x
  2. Step 2: Convert to fraction form
    153,311,221.40/229,966,832.10 = 80,499,867.80/x
  3. Step 3: Cross multiply
    153,311,221.40x = 229,966,832.10 × 80,499,867.80
  4. Step 4: Simplify right side
    153,311,221.40x = 18,512,299,582,434,796
  5. Step 5: Solve for x
    x = 18,512,299,582,434,796/153,311,221.40
  6. Step 6: Final answer
    x = 120,749,801.70

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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.