Finding the Fourth Proportional to 11,578,669.68, 15,980,476.86 and 6,423,691.98
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Solution
The fourth proportional to 11,578,669.68, 15,980,476.86 and 6,423,691.98 is: 8,865,756.07
Step by Step Solution
- Step 1: Write the proportion equation
11,578,669.68 : 15,980,476.86 = 6,423,691.98 : x - Step 2: Convert to fraction form
11,578,669.68/15,980,476.86 = 6,423,691.98/x - Step 3: Cross multiply
11,578,669.68x = 15,980,476.86 × 6,423,691.98 - Step 4: Simplify right side
11,578,669.68x = 102,653,661,042,157.59 - Step 5: Solve for x
x = 102,653,661,042,157.59/11,578,669.68 - Step 6: Final answer
x = 8,865,756.07
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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.