Home / 911,351,690.88-1,257,671,372.04-493,663,976.16

Finding the Fourth Proportional to 911,351,690.88, 1,257,671,372.04 and 493,663,976.16

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Solution

The fourth proportional to 911,351,690.88, 1,257,671,372.04 and 493,663,976.16 is: 681,259,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,351,690.88 : 1,257,671,372.04 = 493,663,976.16 : x
  2. Step 2: Convert to fraction form
    911,351,690.88/1,257,671,372.04 = 493,663,976.16/x
  3. Step 3: Cross multiply
    911,351,690.88x = 1,257,671,372.04 × 493,663,976.16
  4. Step 4: Simplify right side
    911,351,690.88x = 620,867,050,223,869,056
  5. Step 5: Solve for x
    x = 620,867,050,223,869,056/911,351,690.88
  6. Step 6: Final answer
    x = 681,259,558.12

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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.