Home / 830,510,217.80-1,245,889,199.69-305,838,977.88

Finding the Fourth Proportional to 830,510,217.80, 1,245,889,199.69 and 305,838,977.88

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Solution

The fourth proportional to 830,510,217.80, 1,245,889,199.69 and 305,838,977.88 is: 458,804,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,510,217.80 : 1,245,889,199.69 = 305,838,977.88 : x
  2. Step 2: Convert to fraction form
    830,510,217.80/1,245,889,199.69 = 305,838,977.88/x
  3. Step 3: Cross multiply
    830,510,217.80x = 1,245,889,199.69 × 305,838,977.88
  4. Step 4: Simplify right side
    830,510,217.80x = 381,041,479,383,391,616
  5. Step 5: Solve for x
    x = 381,041,479,383,391,616/830,510,217.80
  6. Step 6: Final answer
    x = 458,804,083.58

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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.