Home / 42,529,019.40-63,751,538.70-20,945,953.80

Finding the Fourth Proportional to 42,529,019.40, 63,751,538.70 and 20,945,953.80

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Solution

The fourth proportional to 42,529,019.40, 63,751,538.70 and 20,945,953.80 is: 31,398,250.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,529,019.40 : 63,751,538.70 = 20,945,953.80 : x
  2. Step 2: Convert to fraction form
    42,529,019.40/63,751,538.70 = 20,945,953.80/x
  3. Step 3: Cross multiply
    42,529,019.40x = 63,751,538.70 × 20,945,953.80
  4. Step 4: Simplify right side
    42,529,019.40x = 1,335,336,784,289,112.25
  5. Step 5: Solve for x
    x = 1,335,336,784,289,112.25/42,529,019.40
  6. Step 6: Final answer
    x = 31,398,250.02

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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.