Home / 172,499,745.52-238,046,394.78-105,513,775.13

Finding the Fourth Proportional to 172,499,745.52, 238,046,394.78 and 105,513,775.13

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Solution

The fourth proportional to 172,499,745.52, 238,046,394.78 and 105,513,775.13 is: 145,607,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,499,745.52 : 238,046,394.78 = 105,513,775.13 : x
  2. Step 2: Convert to fraction form
    172,499,745.52/238,046,394.78 = 105,513,775.13/x
  3. Step 3: Cross multiply
    172,499,745.52x = 238,046,394.78 × 105,513,775.13
  4. Step 4: Simplify right side
    172,499,745.52x = 25,117,173,769,919,240
  5. Step 5: Solve for x
    x = 25,117,173,769,919,240/172,499,745.52
  6. Step 6: Final answer
    x = 145,607,019.27

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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.