Home / 13,689,420.21-20,554,316.06-7,635,979.17

Finding the Fourth Proportional to 13,689,420.21, 20,554,316.06 and 7,635,979.17

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Solution

The fourth proportional to 13,689,420.21, 20,554,316.06 and 7,635,979.17 is: 11,465,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,420.21 : 20,554,316.06 = 7,635,979.17 : x
  2. Step 2: Convert to fraction form
    13,689,420.21/20,554,316.06 = 7,635,979.17/x
  3. Step 3: Cross multiply
    13,689,420.21x = 20,554,316.06 × 7,635,979.17
  4. Step 4: Simplify right side
    13,689,420.21x = 156,952,329,249,576.56
  5. Step 5: Solve for x
    x = 156,952,329,249,576.56/13,689,420.21
  6. Step 6: Final answer
    x = 11,465,228.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.