Finding the Fourth Proportional to 7,137,712.85, 9,849,780.63 and 3,874,455.99
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Solution
The fourth proportional to 7,137,712.85, 9,849,780.63 and 3,874,455.99 is: 5,346,606.45
Step by Step Solution
- Step 1: Write the proportion equation
7,137,712.85 : 9,849,780.63 = 3,874,455.99 : x - Step 2: Convert to fraction form
7,137,712.85/9,849,780.63 = 3,874,455.99/x - Step 3: Cross multiply
7,137,712.85x = 9,849,780.63 × 3,874,455.99 - Step 4: Simplify right side
7,137,712.85x = 38,162,541,562,089.48 - Step 5: Solve for x
x = 38,162,541,562,089.48/7,137,712.85 - Step 6: Final answer
x = 5,346,606.45
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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.