Finding the Fourth Proportional to 81,665,811.36, 112,701,371.76 and 46,864,867.68
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Solution
The fourth proportional to 81,665,811.36, 112,701,371.76 and 46,864,867.68 is: 64,674,981.94
Step by Step Solution
- Step 1: Write the proportion equation
81,665,811.36 : 112,701,371.76 = 46,864,867.68 : x - Step 2: Convert to fraction form
81,665,811.36/112,701,371.76 = 46,864,867.68/x - Step 3: Cross multiply
81,665,811.36x = 112,701,371.76 × 46,864,867.68 - Step 4: Simplify right side
81,665,811.36x = 5,281,734,874,886,889 - Step 5: Solve for x
x = 5,281,734,874,886,889/81,665,811.36 - Step 6: Final answer
x = 64,674,981.94
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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.