Home / 28,660,720.80-42,991,081.20-19,094,782.80

Finding the Fourth Proportional to 28,660,720.80, 42,991,081.20 and 19,094,782.80

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Solution

The fourth proportional to 28,660,720.80, 42,991,081.20 and 19,094,782.80 is: 28,642,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660,720.80 : 42,991,081.20 = 19,094,782.80 : x
  2. Step 2: Convert to fraction form
    28,660,720.80/42,991,081.20 = 19,094,782.80/x
  3. Step 3: Cross multiply
    28,660,720.80x = 42,991,081.20 × 19,094,782.80
  4. Step 4: Simplify right side
    28,660,720.80x = 820,905,357,851,163.50
  5. Step 5: Solve for x
    x = 820,905,357,851,163.50/28,660,720.80
  6. Step 6: Final answer
    x = 28,642,174.20

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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.