Finding the Fourth Proportional to 76,801,907.20, 115,202,971.65 and 31,363,701.70
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Solution
The fourth proportional to 76,801,907.20, 115,202,971.65 and 31,363,701.70 is: 47,045,597.82
Step by Step Solution
- Step 1: Write the proportion equation
76,801,907.20 : 115,202,971.65 = 31,363,701.70 : x - Step 2: Convert to fraction form
76,801,907.20/115,202,971.65 = 31,363,701.70/x - Step 3: Cross multiply
76,801,907.20x = 115,202,971.65 × 31,363,701.70 - Step 4: Simplify right side
76,801,907.20x = 3,613,191,637,784,157 - Step 5: Solve for x
x = 3,613,191,637,784,157/76,801,907.20 - Step 6: Final answer
x = 47,045,597.82
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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.