Home / 827,268,201.12-1,240,767,932.40-390,568,041.12

Finding the Fourth Proportional to 827,268,201.12, 1,240,767,932.40 and 390,568,041.12

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Solution

The fourth proportional to 827,268,201.12, 1,240,767,932.40 and 390,568,041.12 is: 585,788,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,268,201.12 : 1,240,767,932.40 = 390,568,041.12 : x
  2. Step 2: Convert to fraction form
    827,268,201.12/1,240,767,932.40 = 390,568,041.12/x
  3. Step 3: Cross multiply
    827,268,201.12x = 1,240,767,932.40 × 390,568,041.12
  4. Step 4: Simplify right side
    827,268,201.12x = 484,604,300,841,980,608
  5. Step 5: Solve for x
    x = 484,604,300,841,980,608/827,268,201.12
  6. Step 6: Final answer
    x = 585,788,623.55

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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.