Finding the Fourth Proportional to 7,862,926.18, 10,854,186.15 and 5,286,101.50
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Solution
The fourth proportional to 7,862,926.18, 10,854,186.15 and 5,286,101.50 is: 7,297,070.88
Step by Step Solution
- Step 1: Write the proportion equation
7,862,926.18 : 10,854,186.15 = 5,286,101.50 : x - Step 2: Convert to fraction form
7,862,926.18/10,854,186.15 = 5,286,101.50/x - Step 3: Cross multiply
7,862,926.18x = 10,854,186.15 × 5,286,101.50 - Step 4: Simplify right side
7,862,926.18x = 57,376,329,688,794.23 - Step 5: Solve for x
x = 57,376,329,688,794.23/7,862,926.18 - Step 6: Final answer
x = 7,297,070.88
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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.