Home / 77,881,380-116,822,267.88-31,823,249.13

Finding the Fourth Proportional to 77,881,380, 116,822,267.88 and 31,823,249.13

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Solution

The fourth proportional to 77,881,380, 116,822,267.88 and 31,823,249.13 is: 47,734,954.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,881,380 : 116,822,267.88 = 31,823,249.13 : x
  2. Step 2: Convert to fraction form
    77,881,380/116,822,267.88 = 31,823,249.13/x
  3. Step 3: Cross multiply
    77,881,380x = 116,822,267.88 × 31,823,249.13
  4. Step 4: Simplify right side
    77,881,380x = 3,717,664,134,092,725.50
  5. Step 5: Solve for x
    x = 3,717,664,134,092,725.50/77,881,380
  6. Step 6: Final answer
    x = 47,734,954.54

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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.