Home / 1,189,405,945.60-1,784,108,918.40-724,501,358.80

Finding the Fourth Proportional to 1,189,405,945.60, 1,784,108,918.40 and 724,501,358.80

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Solution

The fourth proportional to 1,189,405,945.60, 1,784,108,918.40 and 724,501,358.80 is: 1,086,752,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,405,945.60 : 1,784,108,918.40 = 724,501,358.80 : x
  2. Step 2: Convert to fraction form
    1,189,405,945.60/1,784,108,918.40 = 724,501,358.80/x
  3. Step 3: Cross multiply
    1,189,405,945.60x = 1,784,108,918.40 × 724,501,358.80
  4. Step 4: Simplify right side
    1,189,405,945.60x = 1,292,589,335,627,998,208
  5. Step 5: Solve for x
    x = 1,292,589,335,627,998,208/1,189,405,945.60
  6. Step 6: Final answer
    x = 1,086,752,038.20

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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.