Home / 13,576,880.25-18,735,963.03-7,381,926.88

Finding the Fourth Proportional to 13,576,880.25, 18,735,963.03 and 7,381,926.88

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Solution

The fourth proportional to 13,576,880.25, 18,735,963.03 and 7,381,926.88 is: 10,186,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576,880.25 : 18,735,963.03 = 7,381,926.88 : x
  2. Step 2: Convert to fraction form
    13,576,880.25/18,735,963.03 = 7,381,926.88/x
  3. Step 3: Cross multiply
    13,576,880.25x = 18,735,963.03 × 7,381,926.88
  4. Step 4: Simplify right side
    13,576,880.25x = 138,307,509,076,933.59
  5. Step 5: Solve for x
    x = 138,307,509,076,933.59/13,576,880.25
  6. Step 6: Final answer
    x = 10,186,987.47

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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.