Home / 1,220,539,524.17-1,684,332,705.51-663,622,571.23

Finding the Fourth Proportional to 1,220,539,524.17, 1,684,332,705.51 and 663,622,571.23

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Solution

The fourth proportional to 1,220,539,524.17, 1,684,332,705.51 and 663,622,571.23 is: 915,792,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,539,524.17 : 1,684,332,705.51 = 663,622,571.23 : x
  2. Step 2: Convert to fraction form
    1,220,539,524.17/1,684,332,705.51 = 663,622,571.23/x
  3. Step 3: Cross multiply
    1,220,539,524.17x = 1,684,332,705.51 × 663,622,571.23
  4. Step 4: Simplify right side
    1,220,539,524.17x = 1,117,761,200,833,117,696
  5. Step 5: Solve for x
    x = 1,117,761,200,833,117,696/1,220,539,524.17
  6. Step 6: Final answer
    x = 915,792,711.91

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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.