Home / 111,211,088.91-166,844,418.51-78,485,554.92

Finding the Fourth Proportional to 111,211,088.91, 166,844,418.51 and 78,485,554.92

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Solution

The fourth proportional to 111,211,088.91, 166,844,418.51 and 78,485,554.92 is: 117,747,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211,088.91 : 166,844,418.51 = 78,485,554.92 : x
  2. Step 2: Convert to fraction form
    111,211,088.91/166,844,418.51 = 78,485,554.92/x
  3. Step 3: Cross multiply
    111,211,088.91x = 166,844,418.51 × 78,485,554.92
  4. Step 4: Simplify right side
    111,211,088.91x = 13,094,876,772,062,070
  5. Step 5: Solve for x
    x = 13,094,876,772,062,070/111,211,088.91
  6. Step 6: Final answer
    x = 117,747,941.33

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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.