Finding the Fourth Proportional to 15,915,678, 21,913,276.32 and 14,461,021.68
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Solution
The fourth proportional to 15,915,678, 21,913,276.32 and 14,461,021.68 is: 19,910,453.32
Step by Step Solution
- Step 1: Write the proportion equation
15,915,678 : 21,913,276.32 = 14,461,021.68 : x - Step 2: Convert to fraction form
15,915,678/21,913,276.32 = 14,461,021.68/x - Step 3: Cross multiply
15,915,678x = 21,913,276.32 × 14,461,021.68 - Step 4: Simplify right side
15,915,678x = 316,888,363,943,350.62 - Step 5: Solve for x
x = 316,888,363,943,350.62/15,915,678 - Step 6: Final answer
x = 19,910,453.32
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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.