Home / 21,054,414,947.94-31,581,865,032.36-7,609,719,911.58

Finding the Fourth Proportional to 21,054,414,947.94, 31,581,865,032.36 and 7,609,719,911.58

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Solution

The fourth proportional to 21,054,414,947.94, 31,581,865,032.36 and 7,609,719,911.58 is: 11,414,667,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,414,947.94 : 31,581,865,032.36 = 7,609,719,911.58 : x
  2. Step 2: Convert to fraction form
    21,054,414,947.94/31,581,865,032.36 = 7,609,719,911.58/x
  3. Step 3: Cross multiply
    21,054,414,947.94x = 31,581,865,032.36 × 7,609,719,911.58
  4. Step 4: Simplify right side
    21,054,414,947.94x = 240,329,147,181,582,024,704
  5. Step 5: Solve for x
    x = 240,329,147,181,582,024,704/21,054,414,947.94
  6. Step 6: Final answer
    x = 11,414,667,554.33

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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.