Home / 39,860,137.68-55,006,990.29-21,525,423.18

Finding the Fourth Proportional to 39,860,137.68, 55,006,990.29 and 21,525,423.18

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Solution

The fourth proportional to 39,860,137.68, 55,006,990.29 and 21,525,423.18 is: 29,705,084.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860,137.68 : 55,006,990.29 = 21,525,423.18 : x
  2. Step 2: Convert to fraction form
    39,860,137.68/55,006,990.29 = 21,525,423.18/x
  3. Step 3: Cross multiply
    39,860,137.68x = 55,006,990.29 × 21,525,423.18
  4. Step 4: Simplify right side
    39,860,137.68x = 1,184,048,743,850,401
  5. Step 5: Solve for x
    x = 1,184,048,743,850,401/39,860,137.68
  6. Step 6: Final answer
    x = 29,705,084.15

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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.