Finding the Fourth Proportional to 12,922,980.68, 17,834,087.08 and 7,122,136.09
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Solution
The fourth proportional to 12,922,980.68, 17,834,087.08 and 7,122,136.09 is: 9,828,753.78
Step by Step Solution
- Step 1: Write the proportion equation
12,922,980.68 : 17,834,087.08 = 7,122,136.09 : x - Step 2: Convert to fraction form
12,922,980.68/17,834,087.08 = 7,122,136.09/x - Step 3: Cross multiply
12,922,980.68x = 17,834,087.08 × 7,122,136.09 - Step 4: Simplify right side
12,922,980.68x = 127,016,795,267,624.36 - Step 5: Solve for x
x = 127,016,795,267,624.36/12,922,980.68 - Step 6: Final answer
x = 9,828,753.78
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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.