Home / 38,998,406.76-53,817,143.58-21,594,378.30

Finding the Fourth Proportional to 38,998,406.76, 53,817,143.58 and 21,594,378.30

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Solution

The fourth proportional to 38,998,406.76, 53,817,143.58 and 21,594,378.30 is: 29,799,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998,406.76 : 53,817,143.58 = 21,594,378.30 : x
  2. Step 2: Convert to fraction form
    38,998,406.76/53,817,143.58 = 21,594,378.30/x
  3. Step 3: Cross multiply
    38,998,406.76x = 53,817,143.58 × 21,594,378.30
  4. Step 4: Simplify right side
    38,998,406.76x = 1,162,147,757,491,936.25
  5. Step 5: Solve for x
    x = 1,162,147,757,491,936.25/38,998,406.76
  6. Step 6: Final answer
    x = 29,799,877.84

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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.