Finding the Fourth Proportional to 133,186,622.12, 183,820,926.66 and 77,449,290.92
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Solution
The fourth proportional to 133,186,622.12, 183,820,926.66 and 77,449,290.92 is: 106,893,621.89
Step by Step Solution
- Step 1: Write the proportion equation
133,186,622.12 : 183,820,926.66 = 77,449,290.92 : x - Step 2: Convert to fraction form
133,186,622.12/183,820,926.66 = 77,449,290.92/x - Step 3: Cross multiply
133,186,622.12x = 183,820,926.66 × 77,449,290.92 - Step 4: Simplify right side
133,186,622.12x = 14,236,800,426,074,324 - Step 5: Solve for x
x = 14,236,800,426,074,324/133,186,622.12 - Step 6: Final answer
x = 106,893,621.89
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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.