Finding the Fourth Proportional to 19,872,032.70, 27,884,618.70 and 19,872,032.70
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Solution
The fourth proportional to 19,872,032.70, 27,884,618.70 and 19,872,032.70 is: 27,884,618.70
Step by Step Solution
- Step 1: Write the proportion equation
19,872,032.70 : 27,884,618.70 = 19,872,032.70 : x - Step 2: Convert to fraction form
19,872,032.70/27,884,618.70 = 19,872,032.70/x - Step 3: Cross multiply
19,872,032.70x = 27,884,618.70 × 19,872,032.70 - Step 4: Simplify right side
19,872,032.70x = 554,124,054,633,431.44 - Step 5: Solve for x
x = 554,124,054,633,431.44/19,872,032.70 - Step 6: Final answer
x = 27,884,618.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.