Home / 19,928,273,121.60-29,892,409,682.40-12,589,918,843.20

Finding the Fourth Proportional to 19,928,273,121.60, 29,892,409,682.40 and 12,589,918,843.20

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Solution

The fourth proportional to 19,928,273,121.60, 29,892,409,682.40 and 12,589,918,843.20 is: 18,884,878,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,273,121.60 : 29,892,409,682.40 = 12,589,918,843.20 : x
  2. Step 2: Convert to fraction form
    19,928,273,121.60/29,892,409,682.40 = 12,589,918,843.20/x
  3. Step 3: Cross multiply
    19,928,273,121.60x = 29,892,409,682.40 × 12,589,918,843.20
  4. Step 4: Simplify right side
    19,928,273,121.60x = 376,343,011,929,101,959,168
  5. Step 5: Solve for x
    x = 376,343,011,929,101,959,168/19,928,273,121.60
  6. Step 6: Final answer
    x = 18,884,878,264.80

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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.