Finding the Fourth Proportional to 28,411,739.52, 39,208,351.68 and 15,534,683.52
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Solution
The fourth proportional to 28,411,739.52, 39,208,351.68 and 15,534,683.52 is: 21,437,945.90
Step by Step Solution
- Step 1: Write the proportion equation
28,411,739.52 : 39,208,351.68 = 15,534,683.52 : x - Step 2: Convert to fraction form
28,411,739.52/39,208,351.68 = 15,534,683.52/x - Step 3: Cross multiply
28,411,739.52x = 39,208,351.68 × 15,534,683.52 - Step 4: Simplify right side
28,411,739.52x = 609,089,334,689,660.25 - Step 5: Solve for x
x = 609,089,334,689,660.25/28,411,739.52 - Step 6: Final answer
x = 21,437,945.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.