Finding the Fourth Proportional to 7,413,547.61, 11,128,181.93 and 6,566,120.61
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Solution
The fourth proportional to 7,413,547.61, 11,128,181.93 and 6,566,120.61 is: 9,856,142.91
Step by Step Solution
- Step 1: Write the proportion equation
7,413,547.61 : 11,128,181.93 = 6,566,120.61 : x - Step 2: Convert to fraction form
7,413,547.61/11,128,181.93 = 6,566,120.61/x - Step 3: Cross multiply
7,413,547.61x = 11,128,181.93 × 6,566,120.61 - Step 4: Simplify right side
7,413,547.61x = 73,068,984,689,571.98 - Step 5: Solve for x
x = 73,068,984,689,571.98/7,413,547.61 - Step 6: Final answer
x = 9,856,142.91
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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.