Home / 38,738,827.80-53,461,999.08-21,335,168.61

Finding the Fourth Proportional to 38,738,827.80, 53,461,999.08 and 21,335,168.61

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Solution

The fourth proportional to 38,738,827.80, 53,461,999.08 and 21,335,168.61 is: 29,443,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,738,827.80 : 53,461,999.08 = 21,335,168.61 : x
  2. Step 2: Convert to fraction form
    38,738,827.80/53,461,999.08 = 21,335,168.61/x
  3. Step 3: Cross multiply
    38,738,827.80x = 53,461,999.08 × 21,335,168.61
  4. Step 4: Simplify right side
    38,738,827.80x = 1,140,620,764,599,464.75
  5. Step 5: Solve for x
    x = 1,140,620,764,599,464.75/38,738,827.80
  6. Step 6: Final answer
    x = 29,443,863.67

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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.