Home / 12,936,403,731.20-19,404,607,459.20-3,121,751,379.20

Finding the Fourth Proportional to 12,936,403,731.20, 19,404,607,459.20 and 3,121,751,379.20

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Solution

The fourth proportional to 12,936,403,731.20, 19,404,607,459.20 and 3,121,751,379.20 is: 4,682,627,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936,403,731.20 : 19,404,607,459.20 = 3,121,751,379.20 : x
  2. Step 2: Convert to fraction form
    12,936,403,731.20/19,404,607,459.20 = 3,121,751,379.20/x
  3. Step 3: Cross multiply
    12,936,403,731.20x = 19,404,607,459.20 × 3,121,751,379.20
  4. Step 4: Simplify right side
    12,936,403,731.20x = 60,576,360,098,592,202,752
  5. Step 5: Solve for x
    x = 60,576,360,098,592,202,752/12,936,403,731.20
  6. Step 6: Final answer
    x = 4,682,627,518.23

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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.