Home / 21,173,450.40-31,760,175.60-19,220,896.80

Finding the Fourth Proportional to 21,173,450.40, 31,760,175.60 and 19,220,896.80

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Solution

The fourth proportional to 21,173,450.40, 31,760,175.60 and 19,220,896.80 is: 28,831,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,450.40 : 31,760,175.60 = 19,220,896.80 : x
  2. Step 2: Convert to fraction form
    21,173,450.40/31,760,175.60 = 19,220,896.80/x
  3. Step 3: Cross multiply
    21,173,450.40x = 31,760,175.60 × 19,220,896.80
  4. Step 4: Simplify right side
    21,173,450.40x = 610,459,057,557,478.12
  5. Step 5: Solve for x
    x = 610,459,057,557,478.12/21,173,450.40
  6. Step 6: Final answer
    x = 28,831,345.20

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1.5x scale

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.