Home / 122,864,473.78-169,551,966-67,109,929.72

Finding the Fourth Proportional to 122,864,473.78, 169,551,966 and 67,109,929.72

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Solution

The fourth proportional to 122,864,473.78, 169,551,966 and 67,109,929.72 is: 92,611,152.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,864,473.78 : 169,551,966 = 67,109,929.72 : x
  2. Step 2: Convert to fraction form
    122,864,473.78/169,551,966 = 67,109,929.72/x
  3. Step 3: Cross multiply
    122,864,473.78x = 169,551,966 × 67,109,929.72
  4. Step 4: Simplify right side
    122,864,473.78x = 11,378,620,522,147,830
  5. Step 5: Solve for x
    x = 11,378,620,522,147,830/122,864,473.78
  6. Step 6: Final answer
    x = 92,611,152.53

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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.