Home / 153,979,800.96-212,420,896.83-136,356,663.36

Finding the Fourth Proportional to 153,979,800.96, 212,420,896.83 and 136,356,663.36

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Solution

The fourth proportional to 153,979,800.96, 212,420,896.83 and 136,356,663.36 is: 188,109,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,979,800.96 : 212,420,896.83 = 136,356,663.36 : x
  2. Step 2: Convert to fraction form
    153,979,800.96/212,420,896.83 = 136,356,663.36/x
  3. Step 3: Cross multiply
    153,979,800.96x = 212,420,896.83 × 136,356,663.36
  4. Step 4: Simplify right side
    153,979,800.96x = 28,965,004,719,677,604
  5. Step 5: Solve for x
    x = 28,965,004,719,677,604/153,979,800.96
  6. Step 6: Final answer
    x = 188,109,119.11

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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.