Home / 139,163,137.90-192,039,869.03-77,287,462.27

Finding the Fourth Proportional to 139,163,137.90, 192,039,869.03 and 77,287,462.27

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Solution

The fourth proportional to 139,163,137.90, 192,039,869.03 and 77,287,462.27 is: 106,653,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,137.90 : 192,039,869.03 = 77,287,462.27 : x
  2. Step 2: Convert to fraction form
    139,163,137.90/192,039,869.03 = 77,287,462.27/x
  3. Step 3: Cross multiply
    139,163,137.90x = 192,039,869.03 × 77,287,462.27
  4. Step 4: Simplify right side
    139,163,137.90x = 14,842,274,131,125,330
  5. Step 5: Solve for x
    x = 14,842,274,131,125,330/139,163,137.90
  6. Step 6: Final answer
    x = 106,653,775.96

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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.