Home / 151,128,021.20-226,692,031.80-142,170,069.20

Finding the Fourth Proportional to 151,128,021.20, 226,692,031.80 and 142,170,069.20

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Solution

The fourth proportional to 151,128,021.20, 226,692,031.80 and 142,170,069.20 is: 213,255,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,128,021.20 : 226,692,031.80 = 142,170,069.20 : x
  2. Step 2: Convert to fraction form
    151,128,021.20/226,692,031.80 = 142,170,069.20/x
  3. Step 3: Cross multiply
    151,128,021.20x = 226,692,031.80 × 142,170,069.20
  4. Step 4: Simplify right side
    151,128,021.20x = 32,228,821,848,094,600
  5. Step 5: Solve for x
    x = 32,228,821,848,094,600/151,128,021.20
  6. Step 6: Final answer
    x = 213,255,103.80

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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.