Finding the Fourth Proportional to 211,378,530.15, 316,991,724.08 and 73,166,584.23
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Solution
The fourth proportional to 211,378,530.15, 316,991,724.08 and 73,166,584.23 is: 109,723,545.07
Step by Step Solution
- Step 1: Write the proportion equation
211,378,530.15 : 316,991,724.08 = 73,166,584.23 : x - Step 2: Convert to fraction form
211,378,530.15/316,991,724.08 = 73,166,584.23/x - Step 3: Cross multiply
211,378,530.15x = 316,991,724.08 × 73,166,584.23 - Step 4: Simplify right side
211,378,530.15x = 23,193,201,679,746,408 - Step 5: Solve for x
x = 23,193,201,679,746,408/211,378,530.15 - Step 6: Final answer
x = 109,723,545.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.