Home / 1,287,950,665.08-1,932,236,581.49-447,471,080.11

Finding the Fourth Proportional to 1,287,950,665.08, 1,932,236,581.49 and 447,471,080.11

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Solution

The fourth proportional to 1,287,950,665.08, 1,932,236,581.49 and 447,471,080.11 is: 671,314,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,950,665.08 : 1,932,236,581.49 = 447,471,080.11 : x
  2. Step 2: Convert to fraction form
    1,287,950,665.08/1,932,236,581.49 = 447,471,080.11/x
  3. Step 3: Cross multiply
    1,287,950,665.08x = 1,932,236,581.49 × 447,471,080.11
  4. Step 4: Simplify right side
    1,287,950,665.08x = 864,619,990,147,384,320
  5. Step 5: Solve for x
    x = 864,619,990,147,384,320/1,287,950,665.08
  6. Step 6: Final answer
    x = 671,314,525.93

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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.