Home / 5,175,999.45-7,143,410.76-3,111,683.31

Finding the Fourth Proportional to 5,175,999.45, 7,143,410.76 and 3,111,683.31

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Solution

The fourth proportional to 5,175,999.45, 7,143,410.76 and 3,111,683.31 is: 4,294,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175,999.45 : 7,143,410.76 = 3,111,683.31 : x
  2. Step 2: Convert to fraction form
    5,175,999.45/7,143,410.76 = 3,111,683.31/x
  3. Step 3: Cross multiply
    5,175,999.45x = 7,143,410.76 × 3,111,683.31
  4. Step 4: Simplify right side
    5,175,999.45x = 22,228,032,038,366.41
  5. Step 5: Solve for x
    x = 22,228,032,038,366.41/5,175,999.45
  6. Step 6: Final answer
    x = 4,294,442.50

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1.5x scale

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.