Home / 13,719,987.31-18,933,915.78-7,525,287.94

Finding the Fourth Proportional to 13,719,987.31, 18,933,915.78 and 7,525,287.94

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Solution

The fourth proportional to 13,719,987.31, 18,933,915.78 and 7,525,287.94 is: 10,385,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719,987.31 : 18,933,915.78 = 7,525,287.94 : x
  2. Step 2: Convert to fraction form
    13,719,987.31/18,933,915.78 = 7,525,287.94/x
  3. Step 3: Cross multiply
    13,719,987.31x = 18,933,915.78 × 7,525,287.94
  4. Step 4: Simplify right side
    13,719,987.31x = 142,483,167,943,913.66
  5. Step 5: Solve for x
    x = 142,483,167,943,913.66/13,719,987.31
  6. Step 6: Final answer
    x = 10,385,080.16

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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.