Home / 12,985,556.10-19,478,334.15-3,401,903.40

Finding the Fourth Proportional to 12,985,556.10, 19,478,334.15 and 3,401,903.40

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Solution

The fourth proportional to 12,985,556.10, 19,478,334.15 and 3,401,903.40 is: 5,102,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,556.10 : 19,478,334.15 = 3,401,903.40 : x
  2. Step 2: Convert to fraction form
    12,985,556.10/19,478,334.15 = 3,401,903.40/x
  3. Step 3: Cross multiply
    12,985,556.10x = 19,478,334.15 × 3,401,903.40
  4. Step 4: Simplify right side
    12,985,556.10x = 66,263,411,171,221.10
  5. Step 5: Solve for x
    x = 66,263,411,171,221.10/12,985,556.10
  6. Step 6: Final answer
    x = 5,102,855.10

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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.