Home / 12,749,992.79-19,123,120.75-6,271,329.11

Finding the Fourth Proportional to 12,749,992.79, 19,123,120.75 and 6,271,329.11

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Solution

The fourth proportional to 12,749,992.79, 19,123,120.75 and 6,271,329.11 is: 9,406,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749,992.79 : 19,123,120.75 = 6,271,329.11 : x
  2. Step 2: Convert to fraction form
    12,749,992.79/19,123,120.75 = 6,271,329.11/x
  3. Step 3: Cross multiply
    12,749,992.79x = 19,123,120.75 × 6,271,329.11
  4. Step 4: Simplify right side
    12,749,992.79x = 119,927,383,805,403.59
  5. Step 5: Solve for x
    x = 119,927,383,805,403.59/12,749,992.79
  6. Step 6: Final answer
    x = 9,406,074.64

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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.