Home / 9,989,907.66-13,774,580.55-7,380,187.83

Finding the Fourth Proportional to 9,989,907.66, 13,774,580.55 and 7,380,187.83

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Solution

The fourth proportional to 9,989,907.66, 13,774,580.55 and 7,380,187.83 is: 10,176,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,907.66 : 13,774,580.55 = 7,380,187.83 : x
  2. Step 2: Convert to fraction form
    9,989,907.66/13,774,580.55 = 7,380,187.83/x
  3. Step 3: Cross multiply
    9,989,907.66x = 13,774,580.55 × 7,380,187.83
  4. Step 4: Simplify right side
    9,989,907.66x = 101,658,991,738,464.72
  5. Step 5: Solve for x
    x = 101,658,991,738,464.72/9,989,907.66
  6. Step 6: Final answer
    x = 10,176,169.31

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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.