Home / 139,364,731.24-192,318,302.50-76,640,301.16

Finding the Fourth Proportional to 139,364,731.24, 192,318,302.50 and 76,640,301.16

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Solution

The fourth proportional to 139,364,731.24, 192,318,302.50 and 76,640,301.16 is: 105,760,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,364,731.24 : 192,318,302.50 = 76,640,301.16 : x
  2. Step 2: Convert to fraction form
    139,364,731.24/192,318,302.50 = 76,640,301.16/x
  3. Step 3: Cross multiply
    139,364,731.24x = 192,318,302.50 × 76,640,301.16
  4. Step 4: Simplify right side
    139,364,731.24x = 14,739,332,622,179,980
  5. Step 5: Solve for x
    x = 14,739,332,622,179,980/139,364,731.24
  6. Step 6: Final answer
    x = 105,760,851.34

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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.