Home / 2,909,877.55-4,014,922.78-1,916,342.80

Finding the Fourth Proportional to 2,909,877.55, 4,014,922.78 and 1,916,342.80

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Solution

The fourth proportional to 2,909,877.55, 4,014,922.78 and 1,916,342.80 is: 2,644,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,877.55 : 4,014,922.78 = 1,916,342.80 : x
  2. Step 2: Convert to fraction form
    2,909,877.55/4,014,922.78 = 1,916,342.80/x
  3. Step 3: Cross multiply
    2,909,877.55x = 4,014,922.78 × 1,916,342.80
  4. Step 4: Simplify right side
    2,909,877.55x = 7,693,968,362,008.98
  5. Step 5: Solve for x
    x = 7,693,968,362,008.98/2,909,877.55
  6. Step 6: Final answer
    x = 2,644,086.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.