Home / 2,085,996,121.30-3,129,414,085.95-612,133,081.30

Finding the Fourth Proportional to 2,085,996,121.30, 3,129,414,085.95 and 612,133,081.30

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Solution

The fourth proportional to 2,085,996,121.30, 3,129,414,085.95 and 612,133,081.30 is: 918,322,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,996,121.30 : 3,129,414,085.95 = 612,133,081.30 : x
  2. Step 2: Convert to fraction form
    2,085,996,121.30/3,129,414,085.95 = 612,133,081.30/x
  3. Step 3: Cross multiply
    2,085,996,121.30x = 3,129,414,085.95 × 612,133,081.30
  4. Step 4: Simplify right side
    2,085,996,121.30x = 1,915,617,887,096,196,352
  5. Step 5: Solve for x
    x = 1,915,617,887,096,196,352/2,085,996,121.30
  6. Step 6: Final answer
    x = 918,322,842.28

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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.