Home / 139,752,030.63-192,872,153.39-84,015,495.21

Finding the Fourth Proportional to 139,752,030.63, 192,872,153.39 and 84,015,495.21

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Solution

The fourth proportional to 139,752,030.63, 192,872,153.39 and 84,015,495.21 is: 115,950,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,752,030.63 : 192,872,153.39 = 84,015,495.21 : x
  2. Step 2: Convert to fraction form
    139,752,030.63/192,872,153.39 = 84,015,495.21/x
  3. Step 3: Cross multiply
    139,752,030.63x = 192,872,153.39 × 84,015,495.21
  4. Step 4: Simplify right side
    139,752,030.63x = 16,204,249,479,279,928
  5. Step 5: Solve for x
    x = 16,204,249,479,279,928/139,752,030.63
  6. Step 6: Final answer
    x = 115,950,010.93

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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.