Home / 139,743,594-192,846,924.36-81,041,063.76

Finding the Fourth Proportional to 139,743,594, 192,846,924.36 and 81,041,063.76

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Solution

The fourth proportional to 139,743,594, 192,846,924.36 and 81,041,063.76 is: 111,837,111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743,594 : 192,846,924.36 = 81,041,063.76 : x
  2. Step 2: Convert to fraction form
    139,743,594/192,846,924.36 = 81,041,063.76/x
  3. Step 3: Cross multiply
    139,743,594x = 192,846,924.36 × 81,041,063.76
  4. Step 4: Simplify right side
    139,743,594x = 15,628,519,892,978,660
  5. Step 5: Solve for x
    x = 15,628,519,892,978,660/139,743,594
  6. Step 6: Final answer
    x = 111,837,111.42

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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.