Finding the Fourth Proportional to 79,603,345,668.24, 109,855,327,834.62 and 47,078,440,307.70
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Solution
The fourth proportional to 79,603,345,668.24, 109,855,327,834.62 and 47,078,440,307.70 is: 64,969,850,833.90
Step by Step Solution
- Step 1: Write the proportion equation
79,603,345,668.24 : 109,855,327,834.62 = 47,078,440,307.70 : x - Step 2: Convert to fraction form
79,603,345,668.24/109,855,327,834.62 = 47,078,440,307.70/x - Step 3: Cross multiply
79,603,345,668.24x = 109,855,327,834.62 × 47,078,440,307.70 - Step 4: Simplify right side
79,603,345,668.24x = 5,171,817,493,944,971,821,056 - Step 5: Solve for x
x = 5,171,817,493,944,971,821,056/79,603,345,668.24 - Step 6: Final answer
x = 64,969,850,833.90
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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.