Home / 12,879,809.24-17,774,562.86-7,078,796.60

Finding the Fourth Proportional to 12,879,809.24, 17,774,562.86 and 7,078,796.60

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Solution

The fourth proportional to 12,879,809.24, 17,774,562.86 and 7,078,796.60 is: 9,768,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,809.24 : 17,774,562.86 = 7,078,796.60 : x
  2. Step 2: Convert to fraction form
    12,879,809.24/17,774,562.86 = 7,078,796.60/x
  3. Step 3: Cross multiply
    12,879,809.24x = 17,774,562.86 × 7,078,796.60
  4. Step 4: Simplify right side
    12,879,809.24x = 125,822,515,139,854.27
  5. Step 5: Solve for x
    x = 125,822,515,139,854.27/12,879,809.24
  6. Step 6: Final answer
    x = 9,768,973.50

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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.