Finding the Fourth Proportional to 42,299,526.48, 63,450,658.68 and 20,136,855.12
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Solution
The fourth proportional to 42,299,526.48, 63,450,658.68 and 20,136,855.12 is: 30,205,934.38
Step by Step Solution
- Step 1: Write the proportion equation
42,299,526.48 : 63,450,658.68 = 20,136,855.12 : x - Step 2: Convert to fraction form
42,299,526.48/63,450,658.68 = 20,136,855.12/x - Step 3: Cross multiply
42,299,526.48x = 63,450,658.68 × 20,136,855.12 - Step 4: Simplify right side
42,299,526.48x = 1,277,696,721,107,730.50 - Step 5: Solve for x
x = 1,277,696,721,107,730.50/42,299,526.48 - Step 6: Final answer
x = 30,205,934.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.