Finding the Fourth Proportional to 15,753,439,138.17, 21,739,811,509.49 and 8,519,486,614.97
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Solution
The fourth proportional to 15,753,439,138.17, 21,739,811,509.49 and 8,519,486,614.97 is: 11,756,926,950.52
Step by Step Solution
- Step 1: Write the proportion equation
15,753,439,138.17 : 21,739,811,509.49 = 8,519,486,614.97 : x - Step 2: Convert to fraction form
15,753,439,138.17/21,739,811,509.49 = 8,519,486,614.97/x - Step 3: Cross multiply
15,753,439,138.17x = 21,739,811,509.49 × 8,519,486,614.97 - Step 4: Simplify right side
15,753,439,138.17x = 185,212,033,166,919,532,544 - Step 5: Solve for x
x = 185,212,033,166,919,532,544/15,753,439,138.17 - Step 6: Final answer
x = 11,756,926,950.52
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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.