Home / 28,299,136.53-39,048,870.60-15,907,477.89

Finding the Fourth Proportional to 28,299,136.53, 39,048,870.60 and 15,907,477.89

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Solution

The fourth proportional to 28,299,136.53, 39,048,870.60 and 15,907,477.89 is: 21,950,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299,136.53 : 39,048,870.60 = 15,907,477.89 : x
  2. Step 2: Convert to fraction form
    28,299,136.53/39,048,870.60 = 15,907,477.89/x
  3. Step 3: Cross multiply
    28,299,136.53x = 39,048,870.60 × 15,907,477.89
  4. Step 4: Simplify right side
    28,299,136.53x = 621,169,045,698,971.12
  5. Step 5: Solve for x
    x = 621,169,045,698,971.12/28,299,136.53
  6. Step 6: Final answer
    x = 21,950,105.97

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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.