Finding the Fourth Proportional to 76,801,880.69, 115,202,931.90 and 31,363,675.19
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Solution
The fourth proportional to 76,801,880.69, 115,202,931.90 and 31,363,675.19 is: 47,045,558.06
Step by Step Solution
- Step 1: Write the proportion equation
76,801,880.69 : 115,202,931.90 = 31,363,675.19 : x - Step 2: Convert to fraction form
76,801,880.69/115,202,931.90 = 31,363,675.19/x - Step 3: Cross multiply
76,801,880.69x = 115,202,931.90 × 31,363,675.19 - Step 4: Simplify right side
76,801,880.69x = 3,613,187,337,047,290 - Step 5: Solve for x
x = 3,613,187,337,047,290/76,801,880.69 - Step 6: Final answer
x = 47,045,558.06
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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.