Finding the Fourth Proportional to 19,809,683.80, 27,783,945.80 and 19,809,683.80
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Solution
The fourth proportional to 19,809,683.80, 27,783,945.80 and 19,809,683.80 is: 27,783,945.80
Step by Step Solution
- Step 1: Write the proportion equation
19,809,683.80 : 27,783,945.80 = 19,809,683.80 : x - Step 2: Convert to fraction form
19,809,683.80/27,783,945.80 = 19,809,683.80/x - Step 3: Cross multiply
19,809,683.80x = 27,783,945.80 × 19,809,683.80 - Step 4: Simplify right side
19,809,683.80x = 550,391,181,014,338.06 - Step 5: Solve for x
x = 550,391,181,014,338.06/19,809,683.80 - Step 6: Final answer
x = 27,783,945.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.