Finding the Fourth Proportional to 7,817,972.96, 11,728,432.74 and 2,961,733.99
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Solution
The fourth proportional to 7,817,972.96, 11,728,432.74 and 2,961,733.99 is: 4,443,159.13
Step by Step Solution
- Step 1: Write the proportion equation
7,817,972.96 : 11,728,432.74 = 2,961,733.99 : x - Step 2: Convert to fraction form
7,817,972.96/11,728,432.74 = 2,961,733.99/x - Step 3: Cross multiply
7,817,972.96x = 11,728,432.74 × 2,961,733.99 - Step 4: Simplify right side
7,817,972.96x = 34,736,497,923,917.93 - Step 5: Solve for x
x = 34,736,497,923,917.93/7,817,972.96 - Step 6: Final answer
x = 4,443,159.13
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1.5x scale
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.