Home / 13,721,623.16-18,936,091.71-7,526,986.32

Finding the Fourth Proportional to 13,721,623.16, 18,936,091.71 and 7,526,986.32

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Solution

The fourth proportional to 13,721,623.16, 18,936,091.71 and 7,526,986.32 is: 10,387,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,623.16 : 18,936,091.71 = 7,526,986.32 : x
  2. Step 2: Convert to fraction form
    13,721,623.16/18,936,091.71 = 7,526,986.32/x
  3. Step 3: Cross multiply
    13,721,623.16x = 18,936,091.71 × 7,526,986.32
  4. Step 4: Simplify right side
    13,721,623.16x = 142,531,703,326,445.78
  5. Step 5: Solve for x
    x = 142,531,703,326,445.78/13,721,623.16
  6. Step 6: Final answer
    x = 10,387,379.23

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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.