Finding the Fourth Proportional to 112,661,423.61, 155,548,682.42 and 70,339,482.99
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Solution
The fourth proportional to 112,661,423.61, 155,548,682.42 and 70,339,482.99 is: 97,115,885.37
Step by Step Solution
- Step 1: Write the proportion equation
112,661,423.61 : 155,548,682.42 = 70,339,482.99 : x - Step 2: Convert to fraction form
112,661,423.61/155,548,682.42 = 70,339,482.99/x - Step 3: Cross multiply
112,661,423.61x = 155,548,682.42 × 70,339,482.99 - Step 4: Simplify right side
112,661,423.61x = 10,941,213,901,198,500 - Step 5: Solve for x
x = 10,941,213,901,198,500/112,661,423.61 - Step 6: Final answer
x = 97,115,885.37
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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.