Home / 22,152,741.76-30,571,181.76-12,991,991.68

Finding the Fourth Proportional to 22,152,741.76, 30,571,181.76 and 12,991,991.68

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Solution

The fourth proportional to 22,152,741.76, 30,571,181.76 and 12,991,991.68 is: 17,929,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,152,741.76 : 30,571,181.76 = 12,991,991.68 : x
  2. Step 2: Convert to fraction form
    22,152,741.76/30,571,181.76 = 12,991,991.68/x
  3. Step 3: Cross multiply
    22,152,741.76x = 30,571,181.76 × 12,991,991.68
  4. Step 4: Simplify right side
    22,152,741.76x = 397,180,539,073,687.75
  5. Step 5: Solve for x
    x = 397,180,539,073,687.75/22,152,741.76
  6. Step 6: Final answer
    x = 17,929,182.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.