Home / 13,303,501.20-19,960,500.60-5,215,100.40

Finding the Fourth Proportional to 13,303,501.20, 19,960,500.60 and 5,215,100.40

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Solution

The fourth proportional to 13,303,501.20, 19,960,500.60 and 5,215,100.40 is: 7,824,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303,501.20 : 19,960,500.60 = 5,215,100.40 : x
  2. Step 2: Convert to fraction form
    13,303,501.20/19,960,500.60 = 5,215,100.40/x
  3. Step 3: Cross multiply
    13,303,501.20x = 19,960,500.60 × 5,215,100.40
  4. Step 4: Simplify right side
    13,303,501.20x = 104,096,014,663,260.25
  5. Step 5: Solve for x
    x = 104,096,014,663,260.25/13,303,501.20
  6. Step 6: Final answer
    x = 7,824,708.18

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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.