Home / 7,831,911.88-11,747,868.54-2,783,421.64

Finding the Fourth Proportional to 7,831,911.88, 11,747,868.54 and 2,783,421.64

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Solution

The fourth proportional to 7,831,911.88, 11,747,868.54 and 2,783,421.64 is: 4,175,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,911.88 : 11,747,868.54 = 2,783,421.64 : x
  2. Step 2: Convert to fraction form
    7,831,911.88/11,747,868.54 = 2,783,421.64/x
  3. Step 3: Cross multiply
    7,831,911.88x = 11,747,868.54 × 2,783,421.64
  4. Step 4: Simplify right side
    7,831,911.88x = 32,699,271,518,111.20
  5. Step 5: Solve for x
    x = 32,699,271,518,111.20/7,831,911.88
  6. Step 6: Final answer
    x = 4,175,132.72

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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.