Home / 20,477,909,572.92-28,258,375,300.69-11,321,909,067.88

Finding the Fourth Proportional to 20,477,909,572.92, 28,258,375,300.69 and 11,321,909,067.88

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Solution

The fourth proportional to 20,477,909,572.92, 28,258,375,300.69 and 11,321,909,067.88 is: 15,623,604,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477,909,572.92 : 28,258,375,300.69 = 11,321,909,067.88 : x
  2. Step 2: Convert to fraction form
    20,477,909,572.92/28,258,375,300.69 = 11,321,909,067.88/x
  3. Step 3: Cross multiply
    20,477,909,572.92x = 28,258,375,300.69 × 11,321,909,067.88
  4. Step 4: Simplify right side
    20,477,909,572.92x = 319,938,755,560,438,300,672
  5. Step 5: Solve for x
    x = 319,938,755,560,438,300,672/20,477,909,572.92
  6. Step 6: Final answer
    x = 15,623,604,275.68

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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.