Home / 28,656,401.40-39,478,575.42-19,939,583.16

Finding the Fourth Proportional to 28,656,401.40, 39,478,575.42 and 19,939,583.16

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Solution

The fourth proportional to 28,656,401.40, 39,478,575.42 and 19,939,583.16 is: 27,469,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,401.40 : 39,478,575.42 = 19,939,583.16 : x
  2. Step 2: Convert to fraction form
    28,656,401.40/39,478,575.42 = 19,939,583.16/x
  3. Step 3: Cross multiply
    28,656,401.40x = 39,478,575.42 × 19,939,583.16
  4. Step 4: Simplify right side
    28,656,401.40x = 787,186,337,625,422
  5. Step 5: Solve for x
    x = 787,186,337,625,422/28,656,401.40
  6. Step 6: Final answer
    x = 27,469,825.21

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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.