Home / 7,887,320.70-11,830,981.05-3,906,008.70

Finding the Fourth Proportional to 7,887,320.70, 11,830,981.05 and 3,906,008.70

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Solution

The fourth proportional to 7,887,320.70, 11,830,981.05 and 3,906,008.70 is: 5,859,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887,320.70 : 11,830,981.05 = 3,906,008.70 : x
  2. Step 2: Convert to fraction form
    7,887,320.70/11,830,981.05 = 3,906,008.70/x
  3. Step 3: Cross multiply
    7,887,320.70x = 11,830,981.05 × 3,906,008.70
  4. Step 4: Simplify right side
    7,887,320.70x = 46,211,914,910,835.14
  5. Step 5: Solve for x
    x = 46,211,914,910,835.14/7,887,320.70
  6. Step 6: Final answer
    x = 5,859,013.05

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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.