Home / 138,758,130,867.81-207,990,297,038.82-46,673,642,389.20

Finding the Fourth Proportional to 138,758,130,867.81, 207,990,297,038.82 and 46,673,642,389.20

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Solution

The fourth proportional to 138,758,130,867.81, 207,990,297,038.82 and 46,673,642,389.20 is: 69,961,051,534.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,758,130,867.81 : 207,990,297,038.82 = 46,673,642,389.20 : x
  2. Step 2: Convert to fraction form
    138,758,130,867.81/207,990,297,038.82 = 46,673,642,389.20/x
  3. Step 3: Cross multiply
    138,758,130,867.81x = 207,990,297,038.82 × 46,673,642,389.20
  4. Step 4: Simplify right side
    138,758,130,867.81x = 9,707,664,744,413,367,631,872
  5. Step 5: Solve for x
    x = 9,707,664,744,413,367,631,872/138,758,130,867.81
  6. Step 6: Final answer
    x = 69,961,051,534.06

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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.