Finding the Fourth Proportional to 21,630,698.96, 29,818,562.28 and 16,465,063.28
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Solution
The fourth proportional to 21,630,698.96, 29,818,562.28 and 16,465,063.28 is: 22,697,579.76
Step by Step Solution
- Step 1: Write the proportion equation
21,630,698.96 : 29,818,562.28 = 16,465,063.28 : x - Step 2: Convert to fraction form
21,630,698.96/29,818,562.28 = 16,465,063.28/x - Step 3: Cross multiply
21,630,698.96x = 29,818,562.28 × 16,465,063.28 - Step 4: Simplify right side
21,630,698.96x = 490,964,514,858,821.06 - Step 5: Solve for x
x = 490,964,514,858,821.06/21,630,698.96 - Step 6: Final answer
x = 22,697,579.76
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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.