Home / 910,108,730.25-1,255,950,028.44-492,421,015.80

Finding the Fourth Proportional to 910,108,730.25, 1,255,950,028.44 and 492,421,015.80

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Solution

The fourth proportional to 910,108,730.25, 1,255,950,028.44 and 492,421,015.80 is: 679,540,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,108,730.25 : 1,255,950,028.44 = 492,421,015.80 : x
  2. Step 2: Convert to fraction form
    910,108,730.25/1,255,950,028.44 = 492,421,015.80/x
  3. Step 3: Cross multiply
    910,108,730.25x = 1,255,950,028.44 × 492,421,015.80
  4. Step 4: Simplify right side
    910,108,730.25x = 618,456,188,798,463,744
  5. Step 5: Solve for x
    x = 618,456,188,798,463,744/910,108,730.25
  6. Step 6: Final answer
    x = 679,540,991.36

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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.