Finding the Fourth Proportional to 20,746,176.90, 31,119,265.35 and 7,284,365.70
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Solution
The fourth proportional to 20,746,176.90, 31,119,265.35 and 7,284,365.70 is: 10,926,548.55
Step by Step Solution
- Step 1: Write the proportion equation
20,746,176.90 : 31,119,265.35 = 7,284,365.70 : x - Step 2: Convert to fraction form
20,746,176.90/31,119,265.35 = 7,284,365.70/x - Step 3: Cross multiply
20,746,176.90x = 31,119,265.35 × 7,284,365.70 - Step 4: Simplify right side
20,746,176.90x = 226,684,109,124,738.50 - Step 5: Solve for x
x = 226,684,109,124,738.50/20,746,176.90 - Step 6: Final answer
x = 10,926,548.55
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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.