Home / 123,373,211.60-170,256,018.12-68,369,980.88

Finding the Fourth Proportional to 123,373,211.60, 170,256,018.12 and 68,369,980.88

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Solution

The fourth proportional to 123,373,211.60, 170,256,018.12 and 68,369,980.88 is: 94,351,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,373,211.60 : 170,256,018.12 = 68,369,980.88 : x
  2. Step 2: Convert to fraction form
    123,373,211.60/170,256,018.12 = 68,369,980.88/x
  3. Step 3: Cross multiply
    123,373,211.60x = 170,256,018.12 × 68,369,980.88
  4. Step 4: Simplify right side
    123,373,211.60x = 11,640,400,703,569,334
  5. Step 5: Solve for x
    x = 11,640,400,703,569,334/123,373,211.60
  6. Step 6: Final answer
    x = 94,351,120.09

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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.