Finding the Fourth Proportional to 75,282,314.80, 112,923,472.20 and 74,715,444.40
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Solution
The fourth proportional to 75,282,314.80, 112,923,472.20 and 74,715,444.40 is: 112,073,166.60
Step by Step Solution
- Step 1: Write the proportion equation
75,282,314.80 : 112,923,472.20 = 74,715,444.40 : x - Step 2: Convert to fraction form
75,282,314.80/112,923,472.20 = 74,715,444.40/x - Step 3: Cross multiply
75,282,314.80x = 112,923,472.20 × 74,715,444.40 - Step 4: Simplify right side
75,282,314.80x = 8,437,127,408,614,047 - Step 5: Solve for x
x = 8,437,127,408,614,047/75,282,314.80 - Step 6: Final answer
x = 112,073,166.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.