Home / 138,294,477.78-190,843,607.97-76,413,225.30

Finding the Fourth Proportional to 138,294,477.78, 190,843,607.97 and 76,413,225.30

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Solution

The fourth proportional to 138,294,477.78, 190,843,607.97 and 76,413,225.30 is: 105,448,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,294,477.78 : 190,843,607.97 = 76,413,225.30 : x
  2. Step 2: Convert to fraction form
    138,294,477.78/190,843,607.97 = 76,413,225.30/x
  3. Step 3: Cross multiply
    138,294,477.78x = 190,843,607.97 × 76,413,225.30
  4. Step 4: Simplify right side
    138,294,477.78x = 14,582,975,612,876,484
  5. Step 5: Solve for x
    x = 14,582,975,612,876,484/138,294,477.78
  6. Step 6: Final answer
    x = 105,448,719.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.