Home / 12,953,972.20-19,430,958.30-3,977,357.80

Finding the Fourth Proportional to 12,953,972.20, 19,430,958.30 and 3,977,357.80

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Solution

The fourth proportional to 12,953,972.20, 19,430,958.30 and 3,977,357.80 is: 5,966,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,972.20 : 19,430,958.30 = 3,977,357.80 : x
  2. Step 2: Convert to fraction form
    12,953,972.20/19,430,958.30 = 3,977,357.80/x
  3. Step 3: Cross multiply
    12,953,972.20x = 19,430,958.30 × 3,977,357.80
  4. Step 4: Simplify right side
    12,953,972.20x = 77,283,873,555,979.73
  5. Step 5: Solve for x
    x = 77,283,873,555,979.73/12,953,972.20
  6. Step 6: Final answer
    x = 5,966,036.70

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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.