Home / 15,106,880,947.41-20,847,560,520.57-8,240,427,212.70

Finding the Fourth Proportional to 15,106,880,947.41, 20,847,560,520.57 and 8,240,427,212.70

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Solution

The fourth proportional to 15,106,880,947.41, 20,847,560,520.57 and 8,240,427,212.70 is: 11,371,824,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106,880,947.41 : 20,847,560,520.57 = 8,240,427,212.70 : x
  2. Step 2: Convert to fraction form
    15,106,880,947.41/20,847,560,520.57 = 8,240,427,212.70/x
  3. Step 3: Cross multiply
    15,106,880,947.41x = 20,847,560,520.57 × 8,240,427,212.70
  4. Step 4: Simplify right side
    15,106,880,947.41x = 171,792,805,032,115,208,192
  5. Step 5: Solve for x
    x = 171,792,805,032,115,208,192/15,106,880,947.41
  6. Step 6: Final answer
    x = 11,371,824,907.48

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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.