Home / 815,999,538.24-1,223,879,728.41-401,365,062.63

Finding the Fourth Proportional to 815,999,538.24, 1,223,879,728.41 and 401,365,062.63

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Solution

The fourth proportional to 815,999,538.24, 1,223,879,728.41 and 401,365,062.63 is: 601,988,776.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,999,538.24 : 1,223,879,728.41 = 401,365,062.63 : x
  2. Step 2: Convert to fraction form
    815,999,538.24/1,223,879,728.41 = 401,365,062.63/x
  3. Step 3: Cross multiply
    815,999,538.24x = 1,223,879,728.41 × 401,365,062.63
  4. Step 4: Simplify right side
    815,999,538.24x = 491,222,563,844,867,072
  5. Step 5: Solve for x
    x = 491,222,563,844,867,072/815,999,538.24
  6. Step 6: Final answer
    x = 601,988,776.74

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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.