Home / 99,640,842.44-137,382,200-81,937,879.34

Finding the Fourth Proportional to 99,640,842.44, 137,382,200 and 81,937,879.34

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Solution

The fourth proportional to 99,640,842.44, 137,382,200 and 81,937,879.34 is: 112,973,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,842.44 : 137,382,200 = 81,937,879.34 : x
  2. Step 2: Convert to fraction form
    99,640,842.44/137,382,200 = 81,937,879.34/x
  3. Step 3: Cross multiply
    99,640,842.44x = 137,382,200 × 81,937,879.34
  4. Step 4: Simplify right side
    99,640,842.44x = 11,256,806,127,063,748
  5. Step 5: Solve for x
    x = 11,256,806,127,063,748/99,640,842.44
  6. Step 6: Final answer
    x = 112,973,815.27

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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.