Finding the Fourth Proportional to 103,705,722.36, 143,115,397.74 and 57,297,043.80
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Solution
The fourth proportional to 103,705,722.36, 143,115,397.74 and 57,297,043.80 is: 79,070,749.68
Step by Step Solution
- Step 1: Write the proportion equation
103,705,722.36 : 143,115,397.74 = 57,297,043.80 : x - Step 2: Convert to fraction form
103,705,722.36/143,115,397.74 = 57,297,043.80/x - Step 3: Cross multiply
103,705,722.36x = 143,115,397.74 × 57,297,043.80 - Step 4: Simplify right side
103,705,722.36x = 8,200,089,212,763,201 - Step 5: Solve for x
x = 8,200,089,212,763,201/103,705,722.36 - Step 6: Final answer
x = 79,070,749.68
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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.