Home / 1,213,191,380.55-1,819,838,997.11-476,420,704.53

Finding the Fourth Proportional to 1,213,191,380.55, 1,819,838,997.11 and 476,420,704.53

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Solution

The fourth proportional to 1,213,191,380.55, 1,819,838,997.11 and 476,420,704.53 is: 714,651,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,191,380.55 : 1,819,838,997.11 = 476,420,704.53 : x
  2. Step 2: Convert to fraction form
    1,213,191,380.55/1,819,838,997.11 = 476,420,704.53/x
  3. Step 3: Cross multiply
    1,213,191,380.55x = 1,819,838,997.11 × 476,420,704.53
  4. Step 4: Simplify right side
    1,213,191,380.55x = 867,008,977,128,699,648
  5. Step 5: Solve for x
    x = 867,008,977,128,699,648/1,213,191,380.55
  6. Step 6: Final answer
    x = 714,651,448.26

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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.