Home / 147,299,331.78-221,012,712.27-79,062,307.38

Finding the Fourth Proportional to 147,299,331.78, 221,012,712.27 and 79,062,307.38

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Solution

The fourth proportional to 147,299,331.78, 221,012,712.27 and 79,062,307.38 is: 118,627,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,299,331.78 : 221,012,712.27 = 79,062,307.38 : x
  2. Step 2: Convert to fraction form
    147,299,331.78/221,012,712.27 = 79,062,307.38/x
  3. Step 3: Cross multiply
    147,299,331.78x = 221,012,712.27 × 79,062,307.38
  4. Step 4: Simplify right side
    147,299,331.78x = 17,473,774,992,378,238
  5. Step 5: Solve for x
    x = 17,473,774,992,378,238/147,299,331.78
  6. Step 6: Final answer
    x = 118,627,659.62

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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.