Home / 99,640,833.06-137,382,187.07-81,937,869.96

Finding the Fourth Proportional to 99,640,833.06, 137,382,187.07 and 81,937,869.96

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Solution

The fourth proportional to 99,640,833.06, 137,382,187.07 and 81,937,869.96 is: 112,973,802.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,833.06 : 137,382,187.07 = 81,937,869.96 : x
  2. Step 2: Convert to fraction form
    99,640,833.06/137,382,187.07 = 81,937,869.96/x
  3. Step 3: Cross multiply
    99,640,833.06x = 137,382,187.07 × 81,937,869.96
  4. Step 4: Simplify right side
    99,640,833.06x = 11,256,803,778,962,052
  5. Step 5: Solve for x
    x = 11,256,803,778,962,052/99,640,833.06
  6. Step 6: Final answer
    x = 112,973,802.34

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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.