Finding the Fourth Proportional to 7,877,007.80, 11,815,511.70 and 6,696,027.80
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Solution
The fourth proportional to 7,877,007.80, 11,815,511.70 and 6,696,027.80 is: 10,044,041.70
Step by Step Solution
- Step 1: Write the proportion equation
7,877,007.80 : 11,815,511.70 = 6,696,027.80 : x - Step 2: Convert to fraction form
7,877,007.80/11,815,511.70 = 6,696,027.80/x - Step 3: Cross multiply
7,877,007.80x = 11,815,511.70 × 6,696,027.80 - Step 4: Simplify right side
7,877,007.80x = 79,116,994,814,425.25 - Step 5: Solve for x
x = 79,116,994,814,425.25/7,877,007.80 - Step 6: Final answer
x = 10,044,041.70
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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.