Finding the Fourth Proportional to 19,056,991.21, 26,298,814.47 and 10,355,163.79
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Solution
The fourth proportional to 19,056,991.21, 26,298,814.47 and 10,355,163.79 is: 14,290,216.56
Step by Step Solution
- Step 1: Write the proportion equation
19,056,991.21 : 26,298,814.47 = 10,355,163.79 : x - Step 2: Convert to fraction form
19,056,991.21/26,298,814.47 = 10,355,163.79/x - Step 3: Cross multiply
19,056,991.21x = 26,298,814.47 × 10,355,163.79 - Step 4: Simplify right side
19,056,991.21x = 272,328,531,319,672 - Step 5: Solve for x
x = 272,328,531,319,672/19,056,991.21 - Step 6: Final answer
x = 14,290,216.56
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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.