Finding the Fourth Proportional to 19,683,121.20, 29,524,681.80 and 17,557,357.20
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Solution
The fourth proportional to 19,683,121.20, 29,524,681.80 and 17,557,357.20 is: 26,336,035.80
Step by Step Solution
- Step 1: Write the proportion equation
19,683,121.20 : 29,524,681.80 = 17,557,357.20 : x - Step 2: Convert to fraction form
19,683,121.20/29,524,681.80 = 17,557,357.20/x - Step 3: Cross multiply
19,683,121.20x = 29,524,681.80 × 17,557,357.20 - Step 4: Simplify right side
19,683,121.20x = 518,375,384,578,938.94 - Step 5: Solve for x
x = 518,375,384,578,938.94/19,683,121.20 - Step 6: Final answer
x = 26,336,035.80
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1.5x scale
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.