Finding the Fourth Proportional to 19,468,839.18, 26,864,013.57 and 11,207,305.20
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Solution
The fourth proportional to 19,468,839.18, 26,864,013.57 and 11,207,305.20 is: 15,464,363.14
Step by Step Solution
- Step 1: Write the proportion equation
19,468,839.18 : 26,864,013.57 = 11,207,305.20 : x - Step 2: Convert to fraction form
19,468,839.18/26,864,013.57 = 11,207,305.20/x - Step 3: Cross multiply
19,468,839.18x = 26,864,013.57 × 11,207,305.20 - Step 4: Simplify right side
19,468,839.18x = 301,073,198,975,931.56 - Step 5: Solve for x
x = 301,073,198,975,931.56/19,468,839.18 - Step 6: Final answer
x = 15,464,363.14
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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.