Home / 681,621,108.80-1,021,391,169.48-404,727,041.12

Finding the Fourth Proportional to 681,621,108.80, 1,021,391,169.48 and 404,727,041.12

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Solution

The fourth proportional to 681,621,108.80, 1,021,391,169.48 and 404,727,041.12 is: 606,472,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,621,108.80 : 1,021,391,169.48 = 404,727,041.12 : x
  2. Step 2: Convert to fraction form
    681,621,108.80/1,021,391,169.48 = 404,727,041.12/x
  3. Step 3: Cross multiply
    681,621,108.80x = 1,021,391,169.48 × 404,727,041.12
  4. Step 4: Simplify right side
    681,621,108.80x = 413,384,625,849,736,832
  5. Step 5: Solve for x
    x = 413,384,625,849,736,832/681,621,108.80
  6. Step 6: Final answer
    x = 606,472,746.39

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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.