Home / 221,666,927.92-305,887,239.06-122,541,763.52

Finding the Fourth Proportional to 221,666,927.92, 305,887,239.06 and 122,541,763.52

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Solution

The fourth proportional to 221,666,927.92, 305,887,239.06 and 122,541,763.52 is: 169,100,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,666,927.92 : 305,887,239.06 = 122,541,763.52 : x
  2. Step 2: Convert to fraction form
    221,666,927.92/305,887,239.06 = 122,541,763.52/x
  3. Step 3: Cross multiply
    221,666,927.92x = 305,887,239.06 × 122,541,763.52
  4. Step 4: Simplify right side
    221,666,927.92x = 37,483,961,712,676,224
  5. Step 5: Solve for x
    x = 37,483,961,712,676,224/221,666,927.92
  6. Step 6: Final answer
    x = 169,100,379.86

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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.