Home / 528,068,440.30-792,067,231.05-139,882,938.70

Finding the Fourth Proportional to 528,068,440.30, 792,067,231.05 and 139,882,938.70

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Solution

The fourth proportional to 528,068,440.30, 792,067,231.05 and 139,882,938.70 is: 209,815,022.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,068,440.30 : 792,067,231.05 = 139,882,938.70 : x
  2. Step 2: Convert to fraction form
    528,068,440.30/792,067,231.05 = 139,882,938.70/x
  3. Step 3: Cross multiply
    528,068,440.30x = 792,067,231.05 × 139,882,938.70
  4. Step 4: Simplify right side
    528,068,440.30x = 110,796,691,927,245,872
  5. Step 5: Solve for x
    x = 110,796,691,927,245,872/528,068,440.30
  6. Step 6: Final answer
    x = 209,815,022.96

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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.