Home / 123,367,568.72-170,248,245-68,364,343.76

Finding the Fourth Proportional to 123,367,568.72, 170,248,245 and 68,364,343.76

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Solution

The fourth proportional to 123,367,568.72, 170,248,245 and 68,364,343.76 is: 94,343,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,367,568.72 : 170,248,245 = 68,364,343.76 : x
  2. Step 2: Convert to fraction form
    123,367,568.72/170,248,245 = 68,364,343.76/x
  3. Step 3: Cross multiply
    123,367,568.72x = 170,248,245 × 68,364,343.76
  4. Step 4: Simplify right side
    123,367,568.72x = 11,638,909,545,716,702
  5. Step 5: Solve for x
    x = 11,638,909,545,716,702/123,367,568.72
  6. Step 6: Final answer
    x = 94,343,348.63

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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.