Home / 308,315,144.36-462,499,893.21-86,988,422.97

Finding the Fourth Proportional to 308,315,144.36, 462,499,893.21 and 86,988,422.97

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Solution

The fourth proportional to 308,315,144.36, 462,499,893.21 and 86,988,422.97 is: 130,490,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,315,144.36 : 462,499,893.21 = 86,988,422.97 : x
  2. Step 2: Convert to fraction form
    308,315,144.36/462,499,893.21 = 86,988,422.97/x
  3. Step 3: Cross multiply
    308,315,144.36x = 462,499,893.21 × 86,988,422.97
  4. Step 4: Simplify right side
    308,315,144.36x = 40,232,136,334,131,312
  5. Step 5: Solve for x
    x = 40,232,136,334,131,312/308,315,144.36
  6. Step 6: Final answer
    x = 130,490,302.12

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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.