Home / 80,368,955,912.75-120,553,433,827.61-30,008,322,603.08

Finding the Fourth Proportional to 80,368,955,912.75, 120,553,433,827.61 and 30,008,322,603.08

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Solution

The fourth proportional to 80,368,955,912.75, 120,553,433,827.61 and 30,008,322,603.08 is: 45,012,483,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,368,955,912.75 : 120,553,433,827.61 = 30,008,322,603.08 : x
  2. Step 2: Convert to fraction form
    80,368,955,912.75/120,553,433,827.61 = 30,008,322,603.08/x
  3. Step 3: Cross multiply
    80,368,955,912.75x = 120,553,433,827.61 × 30,008,322,603.08
  4. Step 4: Simplify right side
    80,368,955,912.75x = 3,617,606,333,207,375,511,552
  5. Step 5: Solve for x
    x = 3,617,606,333,207,375,511,552/80,368,955,912.75
  6. Step 6: Final answer
    x = 45,012,483,889.11

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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.