Finding the Fourth Proportional to 276,874,807.80, 415,312,211.70 and 276,874,807.80
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Solution
The fourth proportional to 276,874,807.80, 415,312,211.70 and 276,874,807.80 is: 415,312,211.70
Step by Step Solution
- Step 1: Write the proportion equation
276,874,807.80 : 415,312,211.70 = 276,874,807.80 : x - Step 2: Convert to fraction form
276,874,807.80/415,312,211.70 = 276,874,807.80/x - Step 3: Cross multiply
276,874,807.80x = 415,312,211.70 × 276,874,807.80 - Step 4: Simplify right side
276,874,807.80x = 114,989,488,791,430,416 - Step 5: Solve for x
x = 114,989,488,791,430,416/276,874,807.80 - Step 6: Final answer
x = 415,312,211.70
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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.