Home / 13,431,295.38-18,534,646.89-7,319,592.66

Finding the Fourth Proportional to 13,431,295.38, 18,534,646.89 and 7,319,592.66

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Solution

The fourth proportional to 13,431,295.38, 18,534,646.89 and 7,319,592.66 is: 10,100,743.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,295.38 : 18,534,646.89 = 7,319,592.66 : x
  2. Step 2: Convert to fraction form
    13,431,295.38/18,534,646.89 = 7,319,592.66/x
  3. Step 3: Cross multiply
    13,431,295.38x = 18,534,646.89 × 7,319,592.66
  4. Step 4: Simplify right side
    13,431,295.38x = 135,666,065,331,735.83
  5. Step 5: Solve for x
    x = 135,666,065,331,735.83/13,431,295.38
  6. Step 6: Final answer
    x = 10,100,743.19

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1.5x scale

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.