Finding the Fourth Proportional to 19,888,352.70, 27,919,276.50 and 19,888,352.70
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Solution
The fourth proportional to 19,888,352.70, 27,919,276.50 and 19,888,352.70 is: 27,919,276.50
Step by Step Solution
- Step 1: Write the proportion equation
19,888,352.70 : 27,919,276.50 = 19,888,352.70 : x - Step 2: Convert to fraction form
19,888,352.70/27,919,276.50 = 19,888,352.70/x - Step 3: Cross multiply
19,888,352.70x = 27,919,276.50 × 19,888,352.70 - Step 4: Simplify right side
19,888,352.70x = 555,268,418,160,821.50 - Step 5: Solve for x
x = 555,268,418,160,821.50/19,888,352.70 - Step 6: Final answer
x = 27,919,276.50
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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.