Home / 1,440,505,799.42-1,987,289,285.42-964,349,567.82

Finding the Fourth Proportional to 1,440,505,799.42, 1,987,289,285.42 and 964,349,567.82

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Solution

The fourth proportional to 1,440,505,799.42, 1,987,289,285.42 and 964,349,567.82 is: 1,330,394,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,505,799.42 : 1,987,289,285.42 = 964,349,567.82 : x
  2. Step 2: Convert to fraction form
    1,440,505,799.42/1,987,289,285.42 = 964,349,567.82/x
  3. Step 3: Cross multiply
    1,440,505,799.42x = 1,987,289,285.42 × 964,349,567.82
  4. Step 4: Simplify right side
    1,440,505,799.42x = 1,916,441,563,530,504,448
  5. Step 5: Solve for x
    x = 1,916,441,563,530,504,448/1,440,505,799.42
  6. Step 6: Final answer
    x = 1,330,394,896.23

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Double scale
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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.