Home / 1,455,766,947.20-2,183,650,420.80-809,534,691.20

Finding the Fourth Proportional to 1,455,766,947.20, 2,183,650,420.80 and 809,534,691.20

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Solution

The fourth proportional to 1,455,766,947.20, 2,183,650,420.80 and 809,534,691.20 is: 1,214,302,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,766,947.20 : 2,183,650,420.80 = 809,534,691.20 : x
  2. Step 2: Convert to fraction form
    1,455,766,947.20/2,183,650,420.80 = 809,534,691.20/x
  3. Step 3: Cross multiply
    1,455,766,947.20x = 2,183,650,420.80 × 809,534,691.20
  4. Step 4: Simplify right side
    1,455,766,947.20x = 1,767,740,769,091,078,400
  5. Step 5: Solve for x
    x = 1,767,740,769,091,078,400/1,455,766,947.20
  6. Step 6: Final answer
    x = 1,214,302,036.80

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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.