Home / 221,508,596.12-305,688,030.18-122,395,763.48

Finding the Fourth Proportional to 221,508,596.12, 305,688,030.18 and 122,395,763.48

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Solution

The fourth proportional to 221,508,596.12, 305,688,030.18 and 122,395,763.48 is: 168,909,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,508,596.12 : 305,688,030.18 = 122,395,763.48 : x
  2. Step 2: Convert to fraction form
    221,508,596.12/305,688,030.18 = 122,395,763.48/x
  3. Step 3: Cross multiply
    221,508,596.12x = 305,688,030.18 × 122,395,763.48
  4. Step 4: Simplify right side
    221,508,596.12x = 37,414,919,840,578,384
  5. Step 5: Solve for x
    x = 37,414,919,840,578,384/221,508,596.12
  6. Step 6: Final answer
    x = 168,909,561.51

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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.