Home / 12,072,879.51-16,664,907.27-7,178,089.88

Finding the Fourth Proportional to 12,072,879.51, 16,664,907.27 and 7,178,089.88

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Solution

The fourth proportional to 12,072,879.51, 16,664,907.27 and 7,178,089.88 is: 9,908,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072,879.51 : 16,664,907.27 = 7,178,089.88 : x
  2. Step 2: Convert to fraction form
    12,072,879.51/16,664,907.27 = 7,178,089.88/x
  3. Step 3: Cross multiply
    12,072,879.51x = 16,664,907.27 × 7,178,089.88
  4. Step 4: Simplify right side
    12,072,879.51x = 119,622,202,142,600.89
  5. Step 5: Solve for x
    x = 119,622,202,142,600.89/12,072,879.51
  6. Step 6: Final answer
    x = 9,908,340.59

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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.