Home / 77,679,379-116,362,949.44-38,700,322.36

Finding the Fourth Proportional to 77,679,379, 116,362,949.44 and 38,700,322.36

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Solution

The fourth proportional to 77,679,379, 116,362,949.44 and 38,700,322.36 is: 57,972,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679,379 : 116,362,949.44 = 38,700,322.36 : x
  2. Step 2: Convert to fraction form
    77,679,379/116,362,949.44 = 38,700,322.36/x
  3. Step 3: Cross multiply
    77,679,379x = 116,362,949.44 × 38,700,322.36
  4. Step 4: Simplify right side
    77,679,379x = 4,503,283,654,088,381.50
  5. Step 5: Solve for x
    x = 4,503,283,654,088,381.50/77,679,379
  6. Step 6: Final answer
    x = 57,972,704.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.