Finding the Fourth Proportional to 221,732,155.08, 305,992,353.96 and 122,619,609
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Solution
The fourth proportional to 221,732,155.08, 305,992,353.96 and 122,619,609 is: 169,216,155.35
Step by Step Solution
- Step 1: Write the proportion equation
221,732,155.08 : 305,992,353.96 = 122,619,609 : x - Step 2: Convert to fraction form
221,732,155.08/305,992,353.96 = 122,619,609/x - Step 3: Cross multiply
221,732,155.08x = 305,992,353.96 × 122,619,609 - Step 4: Simplify right side
221,732,155.08x = 37,520,662,799,564,800 - Step 5: Solve for x
x = 37,520,662,799,564,800/221,732,155.08 - Step 6: Final answer
x = 169,216,155.35
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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.