Home / 1,213,181,987.15-1,820,020,232.01-548,876,923.57

Finding the Fourth Proportional to 1,213,181,987.15, 1,820,020,232.01 and 548,876,923.57

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Solution

The fourth proportional to 1,213,181,987.15, 1,820,020,232.01 and 548,876,923.57 is: 823,427,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,181,987.15 : 1,820,020,232.01 = 548,876,923.57 : x
  2. Step 2: Convert to fraction form
    1,213,181,987.15/1,820,020,232.01 = 548,876,923.57/x
  3. Step 3: Cross multiply
    1,213,181,987.15x = 1,820,020,232.01 × 548,876,923.57
  4. Step 4: Simplify right side
    1,213,181,987.15x = 998,967,105,770,163,712
  5. Step 5: Solve for x
    x = 998,967,105,770,163,712/1,213,181,987.15
  6. Step 6: Final answer
    x = 823,427,248.64

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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.