Home / 19,318,100.80-28,995,813.60-11,759,828.80

Finding the Fourth Proportional to 19,318,100.80, 28,995,813.60 and 11,759,828.80

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Solution

The fourth proportional to 19,318,100.80, 28,995,813.60 and 11,759,828.80 is: 17,651,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318,100.80 : 28,995,813.60 = 11,759,828.80 : x
  2. Step 2: Convert to fraction form
    19,318,100.80/28,995,813.60 = 11,759,828.80/x
  3. Step 3: Cross multiply
    19,318,100.80x = 28,995,813.60 × 11,759,828.80
  4. Step 4: Simplify right side
    19,318,100.80x = 340,985,803,852,711.75
  5. Step 5: Solve for x
    x = 340,985,803,852,711.75/19,318,100.80
  6. Step 6: Final answer
    x = 17,651,103.87

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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.