Home / 1,040,145,618.72-1,435,400,608.38-570,236,850.60

Finding the Fourth Proportional to 1,040,145,618.72, 1,435,400,608.38 and 570,236,850.60

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Solution

The fourth proportional to 1,040,145,618.72, 1,435,400,608.38 and 570,236,850.60 is: 786,926,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,145,618.72 : 1,435,400,608.38 = 570,236,850.60 : x
  2. Step 2: Convert to fraction form
    1,040,145,618.72/1,435,400,608.38 = 570,236,850.60/x
  3. Step 3: Cross multiply
    1,040,145,618.72x = 1,435,400,608.38 × 570,236,850.60
  4. Step 4: Simplify right side
    1,040,145,618.72x = 818,518,322,271,935,232
  5. Step 5: Solve for x
    x = 818,518,322,271,935,232/1,040,145,618.72
  6. Step 6: Final answer
    x = 786,926,664.44

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Double scale
Find fourth proportional to 1,040,145,619.72, 1,435,400,609.76 and 570,236,851.60
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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.