Home / 20,154,011.20-30,262,509.60-11,650,955.20

Finding the Fourth Proportional to 20,154,011.20, 30,262,509.60 and 11,650,955.20

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Solution

The fourth proportional to 20,154,011.20, 30,262,509.60 and 11,650,955.20 is: 17,494,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154,011.20 : 30,262,509.60 = 11,650,955.20 : x
  2. Step 2: Convert to fraction form
    20,154,011.20/30,262,509.60 = 11,650,955.20/x
  3. Step 3: Cross multiply
    20,154,011.20x = 30,262,509.60 × 11,650,955.20
  4. Step 4: Simplify right side
    20,154,011.20x = 352,587,143,589,169.94
  5. Step 5: Solve for x
    x = 352,587,143,589,169.94/20,154,011.20
  6. Step 6: Final answer
    x = 17,494,638.66

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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.