Home / 1,211,383,043.10-1,812,894,187.05-727,056,438.30

Finding the Fourth Proportional to 1,211,383,043.10, 1,812,894,187.05 and 727,056,438.30

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Solution

The fourth proportional to 1,211,383,043.10, 1,812,894,187.05 and 727,056,438.30 is: 1,088,075,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,383,043.10 : 1,812,894,187.05 = 727,056,438.30 : x
  2. Step 2: Convert to fraction form
    1,211,383,043.10/1,812,894,187.05 = 727,056,438.30/x
  3. Step 3: Cross multiply
    1,211,383,043.10x = 1,812,894,187.05 × 727,056,438.30
  4. Step 4: Simplify right side
    1,211,383,043.10x = 1,318,076,390,651,346,944
  5. Step 5: Solve for x
    x = 1,318,076,390,651,346,944/1,211,383,043.10
  6. Step 6: Final answer
    x = 1,088,075,648.87

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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.