Home / 1,511,041,121.55-2,085,391,913.36-908,406,842.67

Finding the Fourth Proportional to 1,511,041,121.55, 2,085,391,913.36 and 908,406,842.67

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Solution

The fourth proportional to 1,511,041,121.55, 2,085,391,913.36 and 908,406,842.67 is: 1,253,694,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,041,121.55 : 2,085,391,913.36 = 908,406,842.67 : x
  2. Step 2: Convert to fraction form
    1,511,041,121.55/2,085,391,913.36 = 908,406,842.67/x
  3. Step 3: Cross multiply
    1,511,041,121.55x = 2,085,391,913.36 × 908,406,842.67
  4. Step 4: Simplify right side
    1,511,041,121.55x = 1,894,384,283,740,365,568
  5. Step 5: Solve for x
    x = 1,894,384,283,740,365,568/1,511,041,121.55
  6. Step 6: Final answer
    x = 1,253,694,725.26

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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.