Home / 2,160,009.60-3,240,014.40-1,978,051.20

Finding the Fourth Proportional to 2,160,009.60, 3,240,014.40 and 1,978,051.20

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Solution

The fourth proportional to 2,160,009.60, 3,240,014.40 and 1,978,051.20 is: 2,967,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,009.60 : 3,240,014.40 = 1,978,051.20 : x
  2. Step 2: Convert to fraction form
    2,160,009.60/3,240,014.40 = 1,978,051.20/x
  3. Step 3: Cross multiply
    2,160,009.60x = 3,240,014.40 × 1,978,051.20
  4. Step 4: Simplify right side
    2,160,009.60x = 6,408,914,371,937.28
  5. Step 5: Solve for x
    x = 6,408,914,371,937.28/2,160,009.60
  6. Step 6: Final answer
    x = 2,967,076.80

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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.