Home / 139,712,509.43-192,804,553.22-76,990,850.76

Finding the Fourth Proportional to 139,712,509.43, 192,804,553.22 and 76,990,850.76

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Solution

The fourth proportional to 139,712,509.43, 192,804,553.22 and 76,990,850.76 is: 106,248,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,712,509.43 : 192,804,553.22 = 76,990,850.76 : x
  2. Step 2: Convert to fraction form
    139,712,509.43/192,804,553.22 = 76,990,850.76/x
  3. Step 3: Cross multiply
    139,712,509.43x = 192,804,553.22 × 76,990,850.76
  4. Step 4: Simplify right side
    139,712,509.43x = 14,844,186,582,424,544
  5. Step 5: Solve for x
    x = 14,844,186,582,424,544/139,712,509.43
  6. Step 6: Final answer
    x = 106,248,085.04

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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.