Home / 1,260,167,745.80-1,890,251,618.70-340,042,608.20

Finding the Fourth Proportional to 1,260,167,745.80, 1,890,251,618.70 and 340,042,608.20

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Solution

The fourth proportional to 1,260,167,745.80, 1,890,251,618.70 and 340,042,608.20 is: 510,063,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,167,745.80 : 1,890,251,618.70 = 340,042,608.20 : x
  2. Step 2: Convert to fraction form
    1,260,167,745.80/1,890,251,618.70 = 340,042,608.20/x
  3. Step 3: Cross multiply
    1,260,167,745.80x = 1,890,251,618.70 × 340,042,608.20
  4. Step 4: Simplify right side
    1,260,167,745.80x = 642,766,090,577,019,904
  5. Step 5: Solve for x
    x = 642,766,090,577,019,904/1,260,167,745.80
  6. Step 6: Final answer
    x = 510,063,912.30

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1.5x scale

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.