Home / 139,712,512.44-192,804,557.36-76,990,853.76

Finding the Fourth Proportional to 139,712,512.44, 192,804,557.36 and 76,990,853.76

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Solution

The fourth proportional to 139,712,512.44, 192,804,557.36 and 76,990,853.76 is: 106,248,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,712,512.44 : 192,804,557.36 = 76,990,853.76 : x
  2. Step 2: Convert to fraction form
    139,712,512.44/192,804,557.36 = 76,990,853.76/x
  3. Step 3: Cross multiply
    139,712,512.44x = 192,804,557.36 × 76,990,853.76
  4. Step 4: Simplify right side
    139,712,512.44x = 14,844,187,479,965,294
  5. Step 5: Solve for x
    x = 14,844,187,479,965,294/139,712,512.44
  6. Step 6: Final answer
    x = 106,248,089.17

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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.