Home / 1,536,807,789.42-2,120,795,458.95-831,959,770.85

Finding the Fourth Proportional to 1,536,807,789.42, 2,120,795,458.95 and 831,959,770.85

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Solution

The fourth proportional to 1,536,807,789.42, 2,120,795,458.95 and 831,959,770.85 is: 1,148,104,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,807,789.42 : 2,120,795,458.95 = 831,959,770.85 : x
  2. Step 2: Convert to fraction form
    1,536,807,789.42/2,120,795,458.95 = 831,959,770.85/x
  3. Step 3: Cross multiply
    1,536,807,789.42x = 2,120,795,458.95 × 831,959,770.85
  4. Step 4: Simplify right side
    1,536,807,789.42x = 1,764,416,504,037,158,656
  5. Step 5: Solve for x
    x = 1,764,416,504,037,158,656/1,536,807,789.42
  6. Step 6: Final answer
    x = 1,148,104,867.89

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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.