Finding the Fourth Proportional to 74,842,402.75, 103,282,515.80 and 40,503,586.75
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Solution
The fourth proportional to 74,842,402.75, 103,282,515.80 and 40,503,586.75 is: 55,894,949.72
Step by Step Solution
- Step 1: Write the proportion equation
74,842,402.75 : 103,282,515.80 = 40,503,586.75 : x - Step 2: Convert to fraction form
74,842,402.75/103,282,515.80 = 40,503,586.75/x - Step 3: Cross multiply
74,842,402.75x = 103,282,515.80 × 40,503,586.75 - Step 4: Simplify right side
74,842,402.75x = 4,183,312,338,463,545.50 - Step 5: Solve for x
x = 4,183,312,338,463,545.50/74,842,402.75 - Step 6: Final answer
x = 55,894,949.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.