Home / 1,227,240,428.80-1,693,580,611.80-670,323,328.24

Finding the Fourth Proportional to 1,227,240,428.80, 1,693,580,611.80 and 670,323,328.24

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Solution

The fourth proportional to 1,227,240,428.80, 1,693,580,611.80 and 670,323,328.24 is: 925,040,086.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,240,428.80 : 1,693,580,611.80 = 670,323,328.24 : x
  2. Step 2: Convert to fraction form
    1,227,240,428.80/1,693,580,611.80 = 670,323,328.24/x
  3. Step 3: Cross multiply
    1,227,240,428.80x = 1,693,580,611.80 × 670,323,328.24
  4. Step 4: Simplify right side
    1,227,240,428.80x = 1,135,246,592,344,511,360
  5. Step 5: Solve for x
    x = 1,135,246,592,344,511,360/1,227,240,428.80
  6. Step 6: Final answer
    x = 925,040,086.44

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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.