Home / 1,073,128,529.70-1,609,692,794.55-840,676,236.30

Finding the Fourth Proportional to 1,073,128,529.70, 1,609,692,794.55 and 840,676,236.30

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Solution

The fourth proportional to 1,073,128,529.70, 1,609,692,794.55 and 840,676,236.30 is: 1,261,014,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,128,529.70 : 1,609,692,794.55 = 840,676,236.30 : x
  2. Step 2: Convert to fraction form
    1,073,128,529.70/1,609,692,794.55 = 840,676,236.30/x
  3. Step 3: Cross multiply
    1,073,128,529.70x = 1,609,692,794.55 × 840,676,236.30
  4. Step 4: Simplify right side
    1,073,128,529.70x = 1,353,230,480,121,522,944
  5. Step 5: Solve for x
    x = 1,353,230,480,121,522,944/1,073,128,529.70
  6. Step 6: Final answer
    x = 1,261,014,354.45

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Double scale
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Similar ratio
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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.