Home / 112,623,870-155,420,940.60-61,115,646

Finding the Fourth Proportional to 112,623,870, 155,420,940.60 and 61,115,646

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Solution

The fourth proportional to 112,623,870, 155,420,940.60 and 61,115,646 is: 84,339,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,623,870 : 155,420,940.60 = 61,115,646 : x
  2. Step 2: Convert to fraction form
    112,623,870/155,420,940.60 = 61,115,646/x
  3. Step 3: Cross multiply
    112,623,870x = 155,420,940.60 × 61,115,646
  4. Step 4: Simplify right side
    112,623,870x = 9,498,651,186,696,628
  5. Step 5: Solve for x
    x = 9,498,651,186,696,628/112,623,870
  6. Step 6: Final answer
    x = 84,339,591.48

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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.