Home / 163,703,571.90-245,555,357.85-81,835,085.85

Finding the Fourth Proportional to 163,703,571.90, 245,555,357.85 and 81,835,085.85

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Solution

The fourth proportional to 163,703,571.90, 245,555,357.85 and 81,835,085.85 is: 122,752,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,703,571.90 : 245,555,357.85 = 81,835,085.85 : x
  2. Step 2: Convert to fraction form
    163,703,571.90/245,555,357.85 = 81,835,085.85/x
  3. Step 3: Cross multiply
    163,703,571.90x = 245,555,357.85 × 81,835,085.85
  4. Step 4: Simplify right side
    163,703,571.90x = 20,095,043,790,582,220
  5. Step 5: Solve for x
    x = 20,095,043,790,582,220/163,703,571.90
  6. Step 6: Final answer
    x = 122,752,628.78

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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.