Finding the Fourth Proportional to 7,862,929.68, 10,854,190.98 and 5,286,105
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Solution
The fourth proportional to 7,862,929.68, 10,854,190.98 and 5,286,105 is: 7,297,075.71
Step by Step Solution
- Step 1: Write the proportion equation
7,862,929.68 : 10,854,190.98 = 5,286,105 : x - Step 2: Convert to fraction form
7,862,929.68/10,854,190.98 = 5,286,105/x - Step 3: Cross multiply
7,862,929.68x = 10,854,190.98 × 5,286,105 - Step 4: Simplify right side
7,862,929.68x = 57,376,393,210,332.91 - Step 5: Solve for x
x = 57,376,393,210,332.91/7,862,929.68 - Step 6: Final answer
x = 7,297,075.71
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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.