Home / 28,992,235.40-43,438,586.70-18,889,656.20

Finding the Fourth Proportional to 28,992,235.40, 43,438,586.70 and 18,889,656.20

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Solution

The fourth proportional to 28,992,235.40, 43,438,586.70 and 18,889,656.20 is: 28,302,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992,235.40 : 43,438,586.70 = 18,889,656.20 : x
  2. Step 2: Convert to fraction form
    28,992,235.40/43,438,586.70 = 18,889,656.20/x
  3. Step 3: Cross multiply
    28,992,235.40x = 43,438,586.70 × 18,889,656.20
  4. Step 4: Simplify right side
    28,992,235.40x = 820,539,968,576,892.62
  5. Step 5: Solve for x
    x = 820,539,968,576,892.62/28,992,235.40
  6. Step 6: Final answer
    x = 28,302,059.41

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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.