Home / 208,382,305.12-312,494,004.34-70,170,804.07

Finding the Fourth Proportional to 208,382,305.12, 312,494,004.34 and 70,170,804.07

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Solution

The fourth proportional to 208,382,305.12, 312,494,004.34 and 70,170,804.07 is: 105,229,450.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,382,305.12 : 312,494,004.34 = 70,170,804.07 : x
  2. Step 2: Convert to fraction form
    208,382,305.12/312,494,004.34 = 70,170,804.07/x
  3. Step 3: Cross multiply
    208,382,305.12x = 312,494,004.34 × 70,170,804.07
  4. Step 4: Simplify right side
    208,382,305.12x = 21,927,955,550,635,204
  5. Step 5: Solve for x
    x = 21,927,955,550,635,204/208,382,305.12
  6. Step 6: Final answer
    x = 105,229,450.93

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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.