Home / 139,615,218.11-192,666,650.40-76,897,156.55

Finding the Fourth Proportional to 139,615,218.11, 192,666,650.40 and 76,897,156.55

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Solution

The fourth proportional to 139,615,218.11, 192,666,650.40 and 76,897,156.55 is: 106,116,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,615,218.11 : 192,666,650.40 = 76,897,156.55 : x
  2. Step 2: Convert to fraction form
    139,615,218.11/192,666,650.40 = 76,897,156.55/x
  3. Step 3: Cross multiply
    139,615,218.11x = 192,666,650.40 × 76,897,156.55
  4. Step 4: Simplify right side
    139,615,218.11x = 14,815,517,576,809,588
  5. Step 5: Solve for x
    x = 14,815,517,576,809,588/139,615,218.11
  6. Step 6: Final answer
    x = 106,116,781.38

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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.