Home / 13,135,914.47-18,127,453.56-7,175,326.16

Finding the Fourth Proportional to 13,135,914.47, 18,127,453.56 and 7,175,326.16

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Solution

The fourth proportional to 13,135,914.47, 18,127,453.56 and 7,175,326.16 is: 9,901,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,914.47 : 18,127,453.56 = 7,175,326.16 : x
  2. Step 2: Convert to fraction form
    13,135,914.47/18,127,453.56 = 7,175,326.16/x
  3. Step 3: Cross multiply
    13,135,914.47x = 18,127,453.56 × 7,175,326.16
  4. Step 4: Simplify right side
    13,135,914.47x = 130,070,391,652,615.86
  5. Step 5: Solve for x
    x = 130,070,391,652,615.86/13,135,914.47
  6. Step 6: Final answer
    x = 9,901,890.88

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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.