Home / 830,510,232.64-1,245,889,222.04-305,838,992.72

Finding the Fourth Proportional to 830,510,232.64, 1,245,889,222.04 and 305,838,992.72

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Solution

The fourth proportional to 830,510,232.64, 1,245,889,222.04 and 305,838,992.72 is: 458,804,105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,510,232.64 : 1,245,889,222.04 = 305,838,992.72 : x
  2. Step 2: Convert to fraction form
    830,510,232.64/1,245,889,222.04 = 305,838,992.72/x
  3. Step 3: Cross multiply
    830,510,232.64x = 1,245,889,222.04 × 305,838,992.72
  4. Step 4: Simplify right side
    830,510,232.64x = 381,041,504,709,418,048
  5. Step 5: Solve for x
    x = 381,041,504,709,418,048/830,510,232.64
  6. Step 6: Final answer
    x = 458,804,105.88

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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.