Finding the Fourth Proportional to 53,018,129.80, 79,511,448.30 and 20,651,404.60
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Solution
The fourth proportional to 53,018,129.80, 79,511,448.30 and 20,651,404.60 is: 30,970,973.43
Step by Step Solution
- Step 1: Write the proportion equation
53,018,129.80 : 79,511,448.30 = 20,651,404.60 : x - Step 2: Convert to fraction form
53,018,129.80/79,511,448.30 = 20,651,404.60/x - Step 3: Cross multiply
53,018,129.80x = 79,511,448.30 × 20,651,404.60 - Step 4: Simplify right side
53,018,129.80x = 1,642,023,089,175,282.25 - Step 5: Solve for x
x = 1,642,023,089,175,282.25/53,018,129.80 - Step 6: Final answer
x = 30,970,973.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.