Finding the Fourth Proportional to 80,389,895.40, 120,584,843.10 and 49,778,893.80
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Solution
The fourth proportional to 80,389,895.40, 120,584,843.10 and 49,778,893.80 is: 74,668,340.70
Step by Step Solution
- Step 1: Write the proportion equation
80,389,895.40 : 120,584,843.10 = 49,778,893.80 : x - Step 2: Convert to fraction form
80,389,895.40/120,584,843.10 = 49,778,893.80/x - Step 3: Cross multiply
80,389,895.40x = 120,584,843.10 × 49,778,893.80 - Step 4: Simplify right side
80,389,895.40x = 6,002,580,098,564,562 - Step 5: Solve for x
x = 6,002,580,098,564,562/80,389,895.40 - Step 6: Final answer
x = 74,668,340.70
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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.