Home / 1,226,835,917.10-1,840,206,636.45-408,948,218.10

Finding the Fourth Proportional to 1,226,835,917.10, 1,840,206,636.45 and 408,948,218.10

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Solution

The fourth proportional to 1,226,835,917.10, 1,840,206,636.45 and 408,948,218.10 is: 613,406,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,835,917.10 : 1,840,206,636.45 = 408,948,218.10 : x
  2. Step 2: Convert to fraction form
    1,226,835,917.10/1,840,206,636.45 = 408,948,218.10/x
  3. Step 3: Cross multiply
    1,226,835,917.10x = 1,840,206,636.45 × 408,948,218.10
  4. Step 4: Simplify right side
    1,226,835,917.10x = 752,549,224,912,022,016
  5. Step 5: Solve for x
    x = 752,549,224,912,022,016/1,226,835,917.10
  6. Step 6: Final answer
    x = 613,406,580.64

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Double scale
Find fourth proportional to 1,226,835,918.10, 1,840,206,637.95 and 408,948,219.10
Similar ratio
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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.