Home / 1,261,989,459.90-1,892,981,645.55-1,185,193,589.04

Finding the Fourth Proportional to 1,261,989,459.90, 1,892,981,645.55 and 1,185,193,589.04

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Solution

The fourth proportional to 1,261,989,459.90, 1,892,981,645.55 and 1,185,193,589.04 is: 1,777,787,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,989,459.90 : 1,892,981,645.55 = 1,185,193,589.04 : x
  2. Step 2: Convert to fraction form
    1,261,989,459.90/1,892,981,645.55 = 1,185,193,589.04/x
  3. Step 3: Cross multiply
    1,261,989,459.90x = 1,892,981,645.55 × 1,185,193,589.04
  4. Step 4: Simplify right side
    1,261,989,459.90x = 2,243,549,710,476,249,600
  5. Step 5: Solve for x
    x = 2,243,549,710,476,249,600/1,261,989,459.90
  6. Step 6: Final answer
    x = 1,777,787,994.09

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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.