Home / 13,943,232,008.40-20,914,848,012.60-5,217,962,811.60

Finding the Fourth Proportional to 13,943,232,008.40, 20,914,848,012.60 and 5,217,962,811.60

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Solution

The fourth proportional to 13,943,232,008.40, 20,914,848,012.60 and 5,217,962,811.60 is: 7,826,944,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943,232,008.40 : 20,914,848,012.60 = 5,217,962,811.60 : x
  2. Step 2: Convert to fraction form
    13,943,232,008.40/20,914,848,012.60 = 5,217,962,811.60/x
  3. Step 3: Cross multiply
    13,943,232,008.40x = 20,914,848,012.60 × 5,217,962,811.60
  4. Step 4: Simplify right side
    13,943,232,008.40x = 109,132,899,140,012,965,888
  5. Step 5: Solve for x
    x = 109,132,899,140,012,965,888/13,943,232,008.40
  6. Step 6: Final answer
    x = 7,826,944,217.40

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.