Finding the Fourth Proportional to 10,788,901.36, 14,888,976.05 and 6,440,511.40
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Solution
The fourth proportional to 10,788,901.36, 14,888,976.05 and 6,440,511.40 is: 8,888,080.15
Step by Step Solution
- Step 1: Write the proportion equation
10,788,901.36 : 14,888,976.05 = 6,440,511.40 : x - Step 2: Convert to fraction form
10,788,901.36/14,888,976.05 = 6,440,511.40/x - Step 3: Cross multiply
10,788,901.36x = 14,888,976.05 × 6,440,511.40 - Step 4: Simplify right side
10,788,901.36x = 95,892,619,963,230.81 - Step 5: Solve for x
x = 95,892,619,963,230.81/10,788,901.36 - Step 6: Final answer
x = 8,888,080.15
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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.