Home / 13,303,401.20-19,960,350.60-5,215,000.40

Finding the Fourth Proportional to 13,303,401.20, 19,960,350.60 and 5,215,000.40

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Solution

The fourth proportional to 13,303,401.20, 19,960,350.60 and 5,215,000.40 is: 7,824,558.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303,401.20 : 19,960,350.60 = 5,215,000.40 : x
  2. Step 2: Convert to fraction form
    13,303,401.20/19,960,350.60 = 5,215,000.40/x
  3. Step 3: Cross multiply
    13,303,401.20x = 19,960,350.60 × 5,215,000.40
  4. Step 4: Simplify right side
    13,303,401.20x = 104,093,236,363,140.25
  5. Step 5: Solve for x
    x = 104,093,236,363,140.25/13,303,401.20
  6. Step 6: Final answer
    x = 7,824,558.16

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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.