Home / 138,758,130,865.81-207,990,297,035.82-46,673,642,387.20

Finding the Fourth Proportional to 138,758,130,865.81, 207,990,297,035.82 and 46,673,642,387.20

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Solution

The fourth proportional to 138,758,130,865.81, 207,990,297,035.82 and 46,673,642,387.20 is: 69,961,051,531.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,758,130,865.81 : 207,990,297,035.82 = 46,673,642,387.20 : x
  2. Step 2: Convert to fraction form
    138,758,130,865.81/207,990,297,035.82 = 46,673,642,387.20/x
  3. Step 3: Cross multiply
    138,758,130,865.81x = 207,990,297,035.82 × 46,673,642,387.20
  4. Step 4: Simplify right side
    138,758,130,865.81x = 9,707,664,743,857,366,499,328
  5. Step 5: Solve for x
    x = 9,707,664,743,857,366,499,328/138,758,130,865.81
  6. Step 6: Final answer
    x = 69,961,051,531.07

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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.