Home / 1,191,909,380.83-1,644,821,892.21-656,049,588.79

Finding the Fourth Proportional to 1,191,909,380.83, 1,644,821,892.21 and 656,049,588.79

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Solution

The fourth proportional to 1,191,909,380.83, 1,644,821,892.21 and 656,049,588.79 is: 905,341,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,909,380.83 : 1,644,821,892.21 = 656,049,588.79 : x
  2. Step 2: Convert to fraction form
    1,191,909,380.83/1,644,821,892.21 = 656,049,588.79/x
  3. Step 3: Cross multiply
    1,191,909,380.83x = 1,644,821,892.21 × 656,049,588.79
  4. Step 4: Simplify right side
    1,191,909,380.83x = 1,079,084,726,018,567,808
  5. Step 5: Solve for x
    x = 1,079,084,726,018,567,808/1,191,909,380.83
  6. Step 6: Final answer
    x = 905,341,247.73

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Double scale
Find fourth proportional to 1,191,909,381.83, 1,644,821,893.59 and 656,049,589.79
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.