Home / 139,288,699.37-192,216,250.17-76,563,455.07

Finding the Fourth Proportional to 139,288,699.37, 192,216,250.17 and 76,563,455.07

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Solution

The fourth proportional to 139,288,699.37, 192,216,250.17 and 76,563,455.07 is: 105,656,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,288,699.37 : 192,216,250.17 = 76,563,455.07 : x
  2. Step 2: Convert to fraction form
    139,288,699.37/192,216,250.17 = 76,563,455.07/x
  3. Step 3: Cross multiply
    139,288,699.37x = 192,216,250.17 × 76,563,455.07
  4. Step 4: Simplify right side
    139,288,699.37x = 14,716,740,233,614,672
  5. Step 5: Solve for x
    x = 14,716,740,233,614,672/139,288,699.37
  6. Step 6: Final answer
    x = 105,656,383.47

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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.