Home / 28,081,620.80-42,122,431.20-19,571,566.40

Finding the Fourth Proportional to 28,081,620.80, 42,122,431.20 and 19,571,566.40

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Solution

The fourth proportional to 28,081,620.80, 42,122,431.20 and 19,571,566.40 is: 29,357,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,620.80 : 42,122,431.20 = 19,571,566.40 : x
  2. Step 2: Convert to fraction form
    28,081,620.80/42,122,431.20 = 19,571,566.40/x
  3. Step 3: Cross multiply
    28,081,620.80x = 42,122,431.20 × 19,571,566.40
  4. Step 4: Simplify right side
    28,081,620.80x = 824,401,959,160,231.62
  5. Step 5: Solve for x
    x = 824,401,959,160,231.62/28,081,620.80
  6. Step 6: Final answer
    x = 29,357,349.60

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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.