Home / 1,456,128,840.80-2,184,193,261.20-911,933,256.80

Finding the Fourth Proportional to 1,456,128,840.80, 2,184,193,261.20 and 911,933,256.80

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Solution

The fourth proportional to 1,456,128,840.80, 2,184,193,261.20 and 911,933,256.80 is: 1,367,899,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,128,840.80 : 2,184,193,261.20 = 911,933,256.80 : x
  2. Step 2: Convert to fraction form
    1,456,128,840.80/2,184,193,261.20 = 911,933,256.80/x
  3. Step 3: Cross multiply
    1,456,128,840.80x = 2,184,193,261.20 × 911,933,256.80
  4. Step 4: Simplify right side
    1,456,128,840.80x = 1,991,838,474,166,728,704
  5. Step 5: Solve for x
    x = 1,991,838,474,166,728,704/1,456,128,840.80
  6. Step 6: Final answer
    x = 1,367,899,885.20

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Double scale
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1.5x scale

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.