Home / 12,879,768.24-17,774,480.16-7,078,444.56

Finding the Fourth Proportional to 12,879,768.24, 17,774,480.16 and 7,078,444.56

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Solution

The fourth proportional to 12,879,768.24, 17,774,480.16 and 7,078,444.56 is: 9,768,473.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,768.24 : 17,774,480.16 = 7,078,444.56 : x
  2. Step 2: Convert to fraction form
    12,879,768.24/17,774,480.16 = 7,078,444.56/x
  3. Step 3: Cross multiply
    12,879,768.24x = 17,774,480.16 × 7,078,444.56
  4. Step 4: Simplify right side
    12,879,768.24x = 125,815,672,395,379.92
  5. Step 5: Solve for x
    x = 125,815,672,395,379.92/12,879,768.24
  6. Step 6: Final answer
    x = 9,768,473.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.