Home / 80,368,955,912.25-120,553,433,826.85-30,008,322,602.58

Finding the Fourth Proportional to 80,368,955,912.25, 120,553,433,826.85 and 30,008,322,602.58

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Solution

The fourth proportional to 80,368,955,912.25, 120,553,433,826.85 and 30,008,322,602.58 is: 45,012,483,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,368,955,912.25 : 120,553,433,826.85 = 30,008,322,602.58 : x
  2. Step 2: Convert to fraction form
    80,368,955,912.25/120,553,433,826.85 = 30,008,322,602.58/x
  3. Step 3: Cross multiply
    80,368,955,912.25x = 120,553,433,826.85 × 30,008,322,602.58
  4. Step 4: Simplify right side
    80,368,955,912.25x = 3,617,606,333,124,895,571,968
  5. Step 5: Solve for x
    x = 3,617,606,333,124,895,571,968/80,368,955,912.25
  6. Step 6: Final answer
    x = 45,012,483,888.37

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1.5x scale

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.