Home / 28,430,643.48-42,645,930.63-9,261,369.24

Finding the Fourth Proportional to 28,430,643.48, 42,645,930.63 and 9,261,369.24

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Solution

The fourth proportional to 28,430,643.48, 42,645,930.63 and 9,261,369.24 is: 13,892,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430,643.48 : 42,645,930.63 = 9,261,369.24 : x
  2. Step 2: Convert to fraction form
    28,430,643.48/42,645,930.63 = 9,261,369.24/x
  3. Step 3: Cross multiply
    28,430,643.48x = 42,645,930.63 × 9,261,369.24
  4. Step 4: Simplify right side
    28,430,643.48x = 394,959,710,147,855.88
  5. Step 5: Solve for x
    x = 394,959,710,147,855.88/28,430,643.48
  6. Step 6: Final answer
    x = 13,892,042.59

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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.