Home / 20,953,845,565.20-31,384,851,845.40-18,627,409,443.60

Finding the Fourth Proportional to 20,953,845,565.20, 31,384,851,845.40 and 18,627,409,443.60

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Solution

The fourth proportional to 20,953,845,565.20, 31,384,851,845.40 and 18,627,409,443.60 is: 27,900,295,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953,845,565.20 : 31,384,851,845.40 = 18,627,409,443.60 : x
  2. Step 2: Convert to fraction form
    20,953,845,565.20/31,384,851,845.40 = 18,627,409,443.60/x
  3. Step 3: Cross multiply
    20,953,845,565.20x = 31,384,851,845.40 × 18,627,409,443.60
  4. Step 4: Simplify right side
    20,953,845,565.20x = 584,618,485,650,990,825,472
  5. Step 5: Solve for x
    x = 584,618,485,650,990,825,472/20,953,845,565.20
  6. Step 6: Final answer
    x = 27,900,295,620.29

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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.