Home / 680,128,718,425.35-1,020,336,357,702.30-220,627,509,515.27

Finding the Fourth Proportional to 680,128,718,425.35, 1,020,336,357,702.30 and 220,627,509,515.27

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Solution

The fourth proportional to 680,128,718,425.35, 1,020,336,357,702.30 and 220,627,509,515.27 is: 330,987,743,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,128,718,425.35 : 1,020,336,357,702.30 = 220,627,509,515.27 : x
  2. Step 2: Convert to fraction form
    680,128,718,425.35/1,020,336,357,702.30 = 220,627,509,515.27/x
  3. Step 3: Cross multiply
    680,128,718,425.35x = 1,020,336,357,702.30 × 220,627,509,515.27
  4. Step 4: Simplify right side
    680,128,718,425.35x = 225,114,269,467,740,129,460,224
  5. Step 5: Solve for x
    x = 225,114,269,467,740,129,460,224/680,128,718,425.35
  6. Step 6: Final answer
    x = 330,987,743,009.78

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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.