Home / 13,576,880.76-18,735,963.72-7,381,927.38

Finding the Fourth Proportional to 13,576,880.76, 18,735,963.72 and 7,381,927.38

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Solution

The fourth proportional to 13,576,880.76, 18,735,963.72 and 7,381,927.38 is: 10,186,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576,880.76 : 18,735,963.72 = 7,381,927.38 : x
  2. Step 2: Convert to fraction form
    13,576,880.76/18,735,963.72 = 7,381,927.38/x
  3. Step 3: Cross multiply
    13,576,880.76x = 18,735,963.72 × 7,381,927.38
  4. Step 4: Simplify right side
    13,576,880.76x = 138,307,523,538,445.02
  5. Step 5: Solve for x
    x = 138,307,523,538,445.02/13,576,880.76
  6. Step 6: Final answer
    x = 10,186,988.16

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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.