Home / 12,761,426,761.20-19,144,986,008.22-3,919,157,949.60

Finding the Fourth Proportional to 12,761,426,761.20, 19,144,986,008.22 and 3,919,157,949.60

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Solution

The fourth proportional to 12,761,426,761.20, 19,144,986,008.22 and 3,919,157,949.60 is: 5,879,610,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761,426,761.20 : 19,144,986,008.22 = 3,919,157,949.60 : x
  2. Step 2: Convert to fraction form
    12,761,426,761.20/19,144,986,008.22 = 3,919,157,949.60/x
  3. Step 3: Cross multiply
    12,761,426,761.20x = 19,144,986,008.22 × 3,919,157,949.60
  4. Step 4: Simplify right side
    12,761,426,761.20x = 75,032,224,109,096,189,952
  5. Step 5: Solve for x
    x = 75,032,224,109,096,189,952/12,761,426,761.20
  6. Step 6: Final answer
    x = 5,879,610,917.58

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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.