Finding the Fourth Proportional to 10,526,820.16, 15,766,314.68 and 8,238,080.88
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Solution
The fourth proportional to 10,526,820.16, 15,766,314.68 and 8,238,080.88 is: 12,338,405.48
Step by Step Solution
- Step 1: Write the proportion equation
10,526,820.16 : 15,766,314.68 = 8,238,080.88 : x - Step 2: Convert to fraction form
10,526,820.16/15,766,314.68 = 8,238,080.88/x - Step 3: Cross multiply
10,526,820.16x = 15,766,314.68 × 8,238,080.88 - Step 4: Simplify right side
10,526,820.16x = 129,884,175,513,371.31 - Step 5: Solve for x
x = 129,884,175,513,371.31/10,526,820.16 - Step 6: Final answer
x = 12,338,405.48
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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.