Finding the Fourth Proportional to 78,734,110.20, 118,101,165.30 and 67,774,615.80
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Solution
The fourth proportional to 78,734,110.20, 118,101,165.30 and 67,774,615.80 is: 101,661,923.70
Step by Step Solution
- Step 1: Write the proportion equation
78,734,110.20 : 118,101,165.30 = 67,774,615.80 : x - Step 2: Convert to fraction form
78,734,110.20/118,101,165.30 = 67,774,615.80/x - Step 3: Cross multiply
78,734,110.20x = 118,101,165.30 × 67,774,615.80 - Step 4: Simplify right side
78,734,110.20x = 8,004,261,103,739,791 - Step 5: Solve for x
x = 8,004,261,103,739,791/78,734,110.20 - Step 6: Final answer
x = 101,661,923.70
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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.