Finding the Fourth Proportional to 220,721,565.95, 304,609,519.43 and 121,602,292.84
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Solution
The fourth proportional to 220,721,565.95, 304,609,519.43 and 121,602,292.84 is: 167,818,744.05
Step by Step Solution
- Step 1: Write the proportion equation
220,721,565.95 : 304,609,519.43 = 121,602,292.84 : x - Step 2: Convert to fraction form
220,721,565.95/304,609,519.43 = 121,602,292.84/x - Step 3: Cross multiply
220,721,565.95x = 304,609,519.43 × 121,602,292.84 - Step 4: Simplify right side
220,721,565.95x = 37,041,215,983,121,016 - Step 5: Solve for x
x = 37,041,215,983,121,016/220,721,565.95 - Step 6: Final answer
x = 167,818,744.05
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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.