Home / 1,392,644,915.44-1,921,789,391.16-766,073,614.48

Finding the Fourth Proportional to 1,392,644,915.44, 1,921,789,391.16 and 766,073,614.48

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Solution

The fourth proportional to 1,392,644,915.44, 1,921,789,391.16 and 766,073,614.48 is: 1,057,148,257.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,644,915.44 : 1,921,789,391.16 = 766,073,614.48 : x
  2. Step 2: Convert to fraction form
    1,392,644,915.44/1,921,789,391.16 = 766,073,614.48/x
  3. Step 3: Cross multiply
    1,392,644,915.44x = 1,921,789,391.16 × 766,073,614.48
  4. Step 4: Simplify right side
    1,392,644,915.44x = 1,472,232,145,155,259,904
  5. Step 5: Solve for x
    x = 1,472,232,145,155,259,904/1,392,644,915.44
  6. Step 6: Final answer
    x = 1,057,148,257.13

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Double scale
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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.