Finding the Fourth Proportional to 3,931,032,197.13, 5,424,958,286.99 and 2,324,864,031.21
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Solution
The fourth proportional to 3,931,032,197.13, 5,424,958,286.99 and 2,324,864,031.21 is: 3,208,391,526.64
Step by Step Solution
- Step 1: Write the proportion equation
3,931,032,197.13 : 5,424,958,286.99 = 2,324,864,031.21 : x - Step 2: Convert to fraction form
3,931,032,197.13/5,424,958,286.99 = 2,324,864,031.21/x - Step 3: Cross multiply
3,931,032,197.13x = 5,424,958,286.99 × 2,324,864,031.21 - Step 4: Simplify right side
3,931,032,197.13x = 12,612,290,392,226,041,856 - Step 5: Solve for x
x = 12,612,290,392,226,041,856/3,931,032,197.13 - Step 6: Final answer
x = 3,208,391,526.64
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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.