Home / 1,200,043,685.84-1,809,060,103.58-1,120,048,533.20

Finding the Fourth Proportional to 1,200,043,685.84, 1,809,060,103.58 and 1,120,048,533.20

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Solution

The fourth proportional to 1,200,043,685.84, 1,809,060,103.58 and 1,120,048,533.20 is: 1,688,467,794.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,043,685.84 : 1,809,060,103.58 = 1,120,048,533.20 : x
  2. Step 2: Convert to fraction form
    1,200,043,685.84/1,809,060,103.58 = 1,120,048,533.20/x
  3. Step 3: Cross multiply
    1,200,043,685.84x = 1,809,060,103.58 × 1,120,048,533.20
  4. Step 4: Simplify right side
    1,200,043,685.84x = 2,026,235,115,485,419,008
  5. Step 5: Solve for x
    x = 2,026,235,115,485,419,008/1,200,043,685.84
  6. Step 6: Final answer
    x = 1,688,467,794.46

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.