Finding the Fourth Proportional to 13,253,284.70, 19,879,927.05 and 6,875,992.70
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Solution
The fourth proportional to 13,253,284.70, 19,879,927.05 and 6,875,992.70 is: 10,313,989.05
Step by Step Solution
- Step 1: Write the proportion equation
13,253,284.70 : 19,879,927.05 = 6,875,992.70 : x - Step 2: Convert to fraction form
13,253,284.70/19,879,927.05 = 6,875,992.70/x - Step 3: Cross multiply
13,253,284.70x = 19,879,927.05 × 6,875,992.70 - Step 4: Simplify right side
13,253,284.70x = 136,694,233,272,332.55 - Step 5: Solve for x
x = 136,694,233,272,332.55/13,253,284.70 - Step 6: Final answer
x = 10,313,989.05
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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.