Home / 112,623,869-155,420,939.22-61,115,645

Finding the Fourth Proportional to 112,623,869, 155,420,939.22 and 61,115,645

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Solution

The fourth proportional to 112,623,869, 155,420,939.22 and 61,115,645 is: 84,339,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,623,869 : 155,420,939.22 = 61,115,645 : x
  2. Step 2: Convert to fraction form
    112,623,869/155,420,939.22 = 61,115,645/x
  3. Step 3: Cross multiply
    112,623,869x = 155,420,939.22 × 61,115,645
  4. Step 4: Simplify right side
    112,623,869x = 9,498,650,946,936,096
  5. Step 5: Solve for x
    x = 9,498,650,946,936,096/112,623,869
  6. Step 6: Final answer
    x = 84,339,590.10

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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.