Finding the Fourth Proportional to 21,102,001.65, 29,609,986.95 and 21,102,001.65
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Solution
The fourth proportional to 21,102,001.65, 29,609,986.95 and 21,102,001.65 is: 29,609,986.95
Step by Step Solution
- Step 1: Write the proportion equation
21,102,001.65 : 29,609,986.95 = 21,102,001.65 : x - Step 2: Convert to fraction form
21,102,001.65/29,609,986.95 = 21,102,001.65/x - Step 3: Cross multiply
21,102,001.65x = 29,609,986.95 × 21,102,001.65 - Step 4: Simplify right side
21,102,001.65x = 624,829,993,475,378.38 - Step 5: Solve for x
x = 624,829,993,475,378.38/21,102,001.65 - Step 6: Final answer
x = 29,609,986.95
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1.5x scale
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.