Home / 53,343,031.52-79,978,139.20-28,419,170.33

Finding the Fourth Proportional to 53,343,031.52, 79,978,139.20 and 28,419,170.33

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Solution

The fourth proportional to 53,343,031.52, 79,978,139.20 and 28,419,170.33 is: 42,609,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,343,031.52 : 79,978,139.20 = 28,419,170.33 : x
  2. Step 2: Convert to fraction form
    53,343,031.52/79,978,139.20 = 28,419,170.33/x
  3. Step 3: Cross multiply
    53,343,031.52x = 79,978,139.20 × 28,419,170.33
  4. Step 4: Simplify right side
    53,343,031.52x = 2,272,912,360,601,250
  5. Step 5: Solve for x
    x = 2,272,912,360,601,250/53,343,031.52
  6. Step 6: Final answer
    x = 42,609,358.63

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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.