Home / 911,351,620.32-1,257,671,274.24-493,663,905.28

Finding the Fourth Proportional to 911,351,620.32, 1,257,671,274.24 and 493,663,905.28

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Solution

The fourth proportional to 911,351,620.32, 1,257,671,274.24 and 493,663,905.28 is: 681,259,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,351,620.32 : 1,257,671,274.24 = 493,663,905.28 : x
  2. Step 2: Convert to fraction form
    911,351,620.32/1,257,671,274.24 = 493,663,905.28/x
  3. Step 3: Cross multiply
    911,351,620.32x = 1,257,671,274.24 × 493,663,905.28
  4. Step 4: Simplify right side
    911,351,620.32x = 620,866,912,799,792,256
  5. Step 5: Solve for x
    x = 620,866,912,799,792,256/911,351,620.32
  6. Step 6: Final answer
    x = 681,259,460.08

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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.