Home / 28,418,611.20-42,627,916.80-19,908,556.80

Finding the Fourth Proportional to 28,418,611.20, 42,627,916.80 and 19,908,556.80

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Solution

The fourth proportional to 28,418,611.20, 42,627,916.80 and 19,908,556.80 is: 29,862,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418,611.20 : 42,627,916.80 = 19,908,556.80 : x
  2. Step 2: Convert to fraction form
    28,418,611.20/42,627,916.80 = 19,908,556.80/x
  3. Step 3: Cross multiply
    28,418,611.20x = 42,627,916.80 × 19,908,556.80
  4. Step 4: Simplify right side
    28,418,611.20x = 848,660,302,878,474.25
  5. Step 5: Solve for x
    x = 848,660,302,878,474.25/28,418,611.20
  6. Step 6: Final answer
    x = 29,862,835.20

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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.