Home / 52,018,820.70-78,004,611.45-19,659,968.70

Finding the Fourth Proportional to 52,018,820.70, 78,004,611.45 and 19,659,968.70

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Solution

The fourth proportional to 52,018,820.70, 78,004,611.45 and 19,659,968.70 is: 29,481,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,018,820.70 : 78,004,611.45 = 19,659,968.70 : x
  2. Step 2: Convert to fraction form
    52,018,820.70/78,004,611.45 = 19,659,968.70/x
  3. Step 3: Cross multiply
    52,018,820.70x = 78,004,611.45 × 19,659,968.70
  4. Step 4: Simplify right side
    52,018,820.70x = 1,533,568,219,562,661.50
  5. Step 5: Solve for x
    x = 1,533,568,219,562,661.50/52,018,820.70
  6. Step 6: Final answer
    x = 29,481,026.27

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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.