Home / 12,462,629.80-18,679,947.90-5,272,940.20

Finding the Fourth Proportional to 12,462,629.80, 18,679,947.90 and 5,272,940.20

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Solution

The fourth proportional to 12,462,629.80, 18,679,947.90 and 5,272,940.20 is: 7,903,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,629.80 : 18,679,947.90 = 5,272,940.20 : x
  2. Step 2: Convert to fraction form
    12,462,629.80/18,679,947.90 = 5,272,940.20/x
  3. Step 3: Cross multiply
    12,462,629.80x = 18,679,947.90 × 5,272,940.20
  4. Step 4: Simplify right side
    12,462,629.80x = 98,498,248,215,815.58
  5. Step 5: Solve for x
    x = 98,498,248,215,815.58/12,462,629.80
  6. Step 6: Final answer
    x = 7,903,488.25

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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.