Finding the Fourth Proportional to 81,007,071.84, 121,496,902.60 and 22,701,330.69
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Solution
The fourth proportional to 81,007,071.84, 121,496,902.60 and 22,701,330.69 is: 34,048,155.32
Step by Step Solution
- Step 1: Write the proportion equation
81,007,071.84 : 121,496,902.60 = 22,701,330.69 : x - Step 2: Convert to fraction form
81,007,071.84/121,496,902.60 = 22,701,330.69/x - Step 3: Cross multiply
81,007,071.84x = 121,496,902.60 × 22,701,330.69 - Step 4: Simplify right side
81,007,071.84x = 2,758,141,363,879,175.50 - Step 5: Solve for x
x = 2,758,141,363,879,175.50/81,007,071.84 - Step 6: Final answer
x = 34,048,155.32
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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.