Home / 221,666,928.17-305,887,239.40-122,541,763.77

Finding the Fourth Proportional to 221,666,928.17, 305,887,239.40 and 122,541,763.77

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Solution

The fourth proportional to 221,666,928.17, 305,887,239.40 and 122,541,763.77 is: 169,100,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,666,928.17 : 305,887,239.40 = 122,541,763.77 : x
  2. Step 2: Convert to fraction form
    221,666,928.17/305,887,239.40 = 122,541,763.77/x
  3. Step 3: Cross multiply
    221,666,928.17x = 305,887,239.40 × 122,541,763.77
  4. Step 4: Simplify right side
    221,666,928.17x = 37,483,961,830,812,232
  5. Step 5: Solve for x
    x = 37,483,961,830,812,232/221,666,928.17
  6. Step 6: Final answer
    x = 169,100,380.20

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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.