Home / 12,987,233.60-19,480,850.40-5,419,630.40

Finding the Fourth Proportional to 12,987,233.60, 19,480,850.40 and 5,419,630.40

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Solution

The fourth proportional to 12,987,233.60, 19,480,850.40 and 5,419,630.40 is: 8,129,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,233.60 : 19,480,850.40 = 5,419,630.40 : x
  2. Step 2: Convert to fraction form
    12,987,233.60/19,480,850.40 = 5,419,630.40/x
  3. Step 3: Cross multiply
    12,987,233.60x = 19,480,850.40 × 5,419,630.40
  4. Step 4: Simplify right side
    12,987,233.60x = 105,579,009,045,692.16
  5. Step 5: Solve for x
    x = 105,579,009,045,692.16/12,987,233.60
  6. Step 6: Final answer
    x = 8,129,445.60

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1.5x scale

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.