Home / 718,197,866,299.33-991,112,415,172.60-405,404,089,552.92

Finding the Fourth Proportional to 718,197,866,299.33, 991,112,415,172.60 and 405,404,089,552.92

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Solution

The fourth proportional to 718,197,866,299.33, 991,112,415,172.60 and 405,404,089,552.92 is: 559,457,282,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,197,866,299.33 : 991,112,415,172.60 = 405,404,089,552.92 : x
  2. Step 2: Convert to fraction form
    718,197,866,299.33/991,112,415,172.60 = 405,404,089,552.92/x
  3. Step 3: Cross multiply
    718,197,866,299.33x = 991,112,415,172.60 × 405,404,089,552.92
  4. Step 4: Simplify right side
    718,197,866,299.33x = 401,801,026,317,643,556,061,184
  5. Step 5: Solve for x
    x = 401,801,026,317,643,556,061,184/718,197,866,299.33
  6. Step 6: Final answer
    x = 559,457,282,138.71

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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.