Finding the Fourth Proportional to 128,199,214.59, 176,914,982.69 and 69,461,926.08
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Solution
The fourth proportional to 128,199,214.59, 176,914,982.69 and 69,461,926.08 is: 95,857,494.05
Step by Step Solution
- Step 1: Write the proportion equation
128,199,214.59 : 176,914,982.69 = 69,461,926.08 : x - Step 2: Convert to fraction form
128,199,214.59/176,914,982.69 = 69,461,926.08/x - Step 3: Cross multiply
128,199,214.59x = 176,914,982.69 × 69,461,926.08 - Step 4: Simplify right side
128,199,214.59x = 12,288,855,450,057,260 - Step 5: Solve for x
x = 12,288,855,450,057,260/128,199,214.59 - Step 6: Final answer
x = 95,857,494.05
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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.