Home / 13,430,040.12-20,147,453.82-6,249,681.72

Finding the Fourth Proportional to 13,430,040.12, 20,147,453.82 and 6,249,681.72

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Solution

The fourth proportional to 13,430,040.12, 20,147,453.82 and 6,249,681.72 is: 9,375,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430,040.12 : 20,147,453.82 = 6,249,681.72 : x
  2. Step 2: Convert to fraction form
    13,430,040.12/20,147,453.82 = 6,249,681.72/x
  3. Step 3: Cross multiply
    13,430,040.12x = 20,147,453.82 × 6,249,681.72
  4. Step 4: Simplify right side
    13,430,040.12x = 125,915,173,843,398.17
  5. Step 5: Solve for x
    x = 125,915,173,843,398.17/13,430,040.12
  6. Step 6: Final answer
    x = 9,375,636.46

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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.