Home / 921,846,571.11-1,383,223,837.31-430,488,428.93

Finding the Fourth Proportional to 921,846,571.11, 1,383,223,837.31 and 430,488,428.93

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Solution

The fourth proportional to 921,846,571.11, 1,383,223,837.31 and 430,488,428.93 is: 645,944,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,846,571.11 : 1,383,223,837.31 = 430,488,428.93 : x
  2. Step 2: Convert to fraction form
    921,846,571.11/1,383,223,837.31 = 430,488,428.93/x
  3. Step 3: Cross multiply
    921,846,571.11x = 1,383,223,837.31 × 430,488,428.93
  4. Step 4: Simplify right side
    921,846,571.11x = 595,461,856,573,039,360
  5. Step 5: Solve for x
    x = 595,461,856,573,039,360/921,846,571.11
  6. Step 6: Final answer
    x = 645,944,645.49

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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.