Home / 13,576,881.26-18,735,964.40-7,381,927.88

Finding the Fourth Proportional to 13,576,881.26, 18,735,964.40 and 7,381,927.88

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Solution

The fourth proportional to 13,576,881.26, 18,735,964.40 and 7,381,927.88 is: 10,186,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576,881.26 : 18,735,964.40 = 7,381,927.88 : x
  2. Step 2: Convert to fraction form
    13,576,881.26/18,735,964.40 = 7,381,927.88/x
  3. Step 3: Cross multiply
    13,576,881.26x = 18,735,964.40 × 7,381,927.88
  4. Step 4: Simplify right side
    13,576,881.26x = 138,307,537,963,047.45
  5. Step 5: Solve for x
    x = 138,307,537,963,047.45/13,576,881.26
  6. Step 6: Final answer
    x = 10,186,988.85

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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.