Home / 2,850,530.32-3,927,089.64-1,989,571.60

Finding the Fourth Proportional to 2,850,530.32, 3,927,089.64 and 1,989,571.60

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Solution

The fourth proportional to 2,850,530.32, 3,927,089.64 and 1,989,571.60 is: 2,740,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850,530.32 : 3,927,089.64 = 1,989,571.60 : x
  2. Step 2: Convert to fraction form
    2,850,530.32/3,927,089.64 = 1,989,571.60/x
  3. Step 3: Cross multiply
    2,850,530.32x = 3,927,089.64 × 1,989,571.60
  4. Step 4: Simplify right side
    2,850,530.32x = 7,813,226,018,398.23
  5. Step 5: Solve for x
    x = 7,813,226,018,398.23/2,850,530.32
  6. Step 6: Final answer
    x = 2,740,972.78

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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.