Home / 911,638,329.32-1,258,061,367.46-493,950,942.76

Finding the Fourth Proportional to 911,638,329.32, 1,258,061,367.46 and 493,950,942.76

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Solution

The fourth proportional to 911,638,329.32, 1,258,061,367.46 and 493,950,942.76 is: 681,652,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,638,329.32 : 1,258,061,367.46 = 493,950,942.76 : x
  2. Step 2: Convert to fraction form
    911,638,329.32/1,258,061,367.46 = 493,950,942.76/x
  3. Step 3: Cross multiply
    911,638,329.32x = 1,258,061,367.46 × 493,950,942.76
  4. Step 4: Simplify right side
    911,638,329.32x = 621,420,598,506,801,792
  5. Step 5: Solve for x
    x = 621,420,598,506,801,792/911,638,329.32
  6. Step 6: Final answer
    x = 681,652,557.29

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Double scale
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1.5x scale

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.