Home / 4,989,470.78-6,885,456.74-2,784,310.45

Finding the Fourth Proportional to 4,989,470.78, 6,885,456.74 and 2,784,310.45

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Solution

The fourth proportional to 4,989,470.78, 6,885,456.74 and 2,784,310.45 is: 3,842,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989,470.78 : 6,885,456.74 = 2,784,310.45 : x
  2. Step 2: Convert to fraction form
    4,989,470.78/6,885,456.74 = 2,784,310.45/x
  3. Step 3: Cross multiply
    4,989,470.78x = 6,885,456.74 × 2,784,310.45
  4. Step 4: Simplify right side
    4,989,470.78x = 19,171,249,172,241.60
  5. Step 5: Solve for x
    x = 19,171,249,172,241.60/4,989,470.78
  6. Step 6: Final answer
    x = 3,842,341.21

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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.