Home / 13,289,130.20-19,933,695.30-7,242,512.60

Finding the Fourth Proportional to 13,289,130.20, 19,933,695.30 and 7,242,512.60

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Solution

The fourth proportional to 13,289,130.20, 19,933,695.30 and 7,242,512.60 is: 10,863,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289,130.20 : 19,933,695.30 = 7,242,512.60 : x
  2. Step 2: Convert to fraction form
    13,289,130.20/19,933,695.30 = 7,242,512.60/x
  3. Step 3: Cross multiply
    13,289,130.20x = 19,933,695.30 × 7,242,512.60
  4. Step 4: Simplify right side
    13,289,130.20x = 144,370,039,374,810.78
  5. Step 5: Solve for x
    x = 144,370,039,374,810.78/13,289,130.20
  6. Step 6: Final answer
    x = 10,863,768.90

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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.