Home / 830,510,214.65-1,245,889,195.02-305,838,974.73

Finding the Fourth Proportional to 830,510,214.65, 1,245,889,195.02 and 305,838,974.73

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Solution

The fourth proportional to 830,510,214.65, 1,245,889,195.02 and 305,838,974.73 is: 458,804,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,510,214.65 : 1,245,889,195.02 = 305,838,974.73 : x
  2. Step 2: Convert to fraction form
    830,510,214.65/1,245,889,195.02 = 305,838,974.73/x
  3. Step 3: Cross multiply
    830,510,214.65x = 1,245,889,195.02 × 305,838,974.73
  4. Step 4: Simplify right side
    830,510,214.65x = 381,041,474,032,101,824
  5. Step 5: Solve for x
    x = 381,041,474,032,101,824/830,510,214.65
  6. Step 6: Final answer
    x = 458,804,078.88

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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.