Home / 221,415,731.52-332,155,294.56-68,074,664.64

Finding the Fourth Proportional to 221,415,731.52, 332,155,294.56 and 68,074,664.64

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Solution

The fourth proportional to 221,415,731.52, 332,155,294.56 and 68,074,664.64 is: 102,121,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,415,731.52 : 332,155,294.56 = 68,074,664.64 : x
  2. Step 2: Convert to fraction form
    221,415,731.52/332,155,294.56 = 68,074,664.64/x
  3. Step 3: Cross multiply
    221,415,731.52x = 332,155,294.56 × 68,074,664.64
  4. Step 4: Simplify right side
    221,415,731.52x = 22,611,360,285,572,416
  5. Step 5: Solve for x
    x = 22,611,360,285,572,416/221,415,731.52
  6. Step 6: Final answer
    x = 102,121,742.35

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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.