Finding the Fourth Proportional to 221,595,260.76, 305,817,293.34 and 122,473,875.96
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Solution
The fourth proportional to 221,595,260.76, 305,817,293.34 and 122,473,875.96 is: 169,022,699.87
Step by Step Solution
- Step 1: Write the proportion equation
221,595,260.76 : 305,817,293.34 = 122,473,875.96 : x - Step 2: Convert to fraction form
221,595,260.76/305,817,293.34 = 122,473,875.96/x - Step 3: Cross multiply
221,595,260.76x = 305,817,293.34 × 122,473,875.96 - Step 4: Simplify right side
221,595,260.76x = 37,454,629,250,946,088 - Step 5: Solve for x
x = 37,454,629,250,946,088/221,595,260.76 - Step 6: Final answer
x = 169,022,699.87
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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.