Home / 1,220,170,825.30-1,683,836,823.93-663,253,872.37

Finding the Fourth Proportional to 1,220,170,825.30, 1,683,836,823.93 and 663,253,872.37

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Solution

The fourth proportional to 1,220,170,825.30, 1,683,836,823.93 and 663,253,872.37 is: 915,290,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,170,825.30 : 1,683,836,823.93 = 663,253,872.37 : x
  2. Step 2: Convert to fraction form
    1,220,170,825.30/1,683,836,823.93 = 663,253,872.37/x
  3. Step 3: Cross multiply
    1,220,170,825.30x = 1,683,836,823.93 × 663,253,872.37
  4. Step 4: Simplify right side
    1,220,170,825.30x = 1,116,811,293,910,774,400
  5. Step 5: Solve for x
    x = 1,116,811,293,910,774,400/1,220,170,825.30
  6. Step 6: Final answer
    x = 915,290,933.66

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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.