Home / 1,409,857,438.56-1,945,655,772.78-845,434,213.68

Finding the Fourth Proportional to 1,409,857,438.56, 1,945,655,772.78 and 845,434,213.68

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Solution

The fourth proportional to 1,409,857,438.56, 1,945,655,772.78 and 845,434,213.68 is: 1,166,730,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,857,438.56 : 1,945,655,772.78 = 845,434,213.68 : x
  2. Step 2: Convert to fraction form
    1,409,857,438.56/1,945,655,772.78 = 845,434,213.68/x
  3. Step 3: Cross multiply
    1,409,857,438.56x = 1,945,655,772.78 × 845,434,213.68
  4. Step 4: Simplify right side
    1,409,857,438.56x = 1,644,923,958,352,211,968
  5. Step 5: Solve for x
    x = 1,644,923,958,352,211,968/1,409,857,438.56
  6. Step 6: Final answer
    x = 1,166,730,701.53

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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.