Home / 77,211,292.32-115,816,864.32-19,703,563.20

Finding the Fourth Proportional to 77,211,292.32, 115,816,864.32 and 19,703,563.20

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Solution

The fourth proportional to 77,211,292.32, 115,816,864.32 and 19,703,563.20 is: 29,555,325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,211,292.32 : 115,816,864.32 = 19,703,563.20 : x
  2. Step 2: Convert to fraction form
    77,211,292.32/115,816,864.32 = 19,703,563.20/x
  3. Step 3: Cross multiply
    77,211,292.32x = 115,816,864.32 × 19,703,563.20
  4. Step 4: Simplify right side
    77,211,292.32x = 2,282,004,905,754,945
  5. Step 5: Solve for x
    x = 2,282,004,905,754,945/77,211,292.32
  6. Step 6: Final answer
    x = 29,555,325.88

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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.