Home / 905,418,066.80-1,358,127,100.20-259,185,810.80

Finding the Fourth Proportional to 905,418,066.80, 1,358,127,100.20 and 259,185,810.80

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Solution

The fourth proportional to 905,418,066.80, 1,358,127,100.20 and 259,185,810.80 is: 388,778,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,418,066.80 : 1,358,127,100.20 = 259,185,810.80 : x
  2. Step 2: Convert to fraction form
    905,418,066.80/1,358,127,100.20 = 259,185,810.80/x
  3. Step 3: Cross multiply
    905,418,066.80x = 1,358,127,100.20 × 259,185,810.80
  4. Step 4: Simplify right side
    905,418,066.80x = 352,007,273,634,789,888
  5. Step 5: Solve for x
    x = 352,007,273,634,789,888/905,418,066.80
  6. Step 6: Final answer
    x = 388,778,716.20

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Double scale
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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.