Home / 911,351,689.88-1,257,671,370.66-493,663,975.16

Finding the Fourth Proportional to 911,351,689.88, 1,257,671,370.66 and 493,663,975.16

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Solution

The fourth proportional to 911,351,689.88, 1,257,671,370.66 and 493,663,975.16 is: 681,259,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,351,689.88 : 1,257,671,370.66 = 493,663,975.16 : x
  2. Step 2: Convert to fraction form
    911,351,689.88/1,257,671,370.66 = 493,663,975.16/x
  3. Step 3: Cross multiply
    911,351,689.88x = 1,257,671,370.66 × 493,663,975.16
  4. Step 4: Simplify right side
    911,351,689.88x = 620,867,048,284,941,440
  5. Step 5: Solve for x
    x = 620,867,048,284,941,440/911,351,689.88
  6. Step 6: Final answer
    x = 681,259,556.74

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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.