Home / 309,729,060.88-427,516,363.74-202,453,966.60

Finding the Fourth Proportional to 309,729,060.88, 427,516,363.74 and 202,453,966.60

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Solution

The fourth proportional to 309,729,060.88, 427,516,363.74 and 202,453,966.60 is: 279,445,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,729,060.88 : 427,516,363.74 = 202,453,966.60 : x
  2. Step 2: Convert to fraction form
    309,729,060.88/427,516,363.74 = 202,453,966.60/x
  3. Step 3: Cross multiply
    309,729,060.88x = 427,516,363.74 × 202,453,966.60
  4. Step 4: Simplify right side
    309,729,060.88x = 86,552,383,625,571,408
  5. Step 5: Solve for x
    x = 86,552,383,625,571,408/309,729,060.88
  6. Step 6: Final answer
    x = 279,445,472.05

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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.