Finding the Fourth Proportional to 14,486,564.68, 19,991,393.62 and 7,960,175.16
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Solution
The fourth proportional to 14,486,564.68, 19,991,393.62 and 7,960,175.16 is: 10,985,005.65
Step by Step Solution
- Step 1: Write the proportion equation
14,486,564.68 : 19,991,393.62 = 7,960,175.16 : x - Step 2: Convert to fraction form
14,486,564.68/19,991,393.62 = 7,960,175.16/x - Step 3: Cross multiply
14,486,564.68x = 19,991,393.62 × 7,960,175.16 - Step 4: Simplify right side
14,486,564.68x = 159,134,994,907,706.50 - Step 5: Solve for x
x = 159,134,994,907,706.50/14,486,564.68 - Step 6: Final answer
x = 10,985,005.65
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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.