Finding the Fourth Proportional to 369,887,643.96, 554,059,381.47 and 221,865,769.95
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Solution
The fourth proportional to 369,887,643.96, 554,059,381.47 and 221,865,769.95 is: 332,335,543.71
Step by Step Solution
- Step 1: Write the proportion equation
369,887,643.96 : 554,059,381.47 = 221,865,769.95 : x - Step 2: Convert to fraction form
369,887,643.96/554,059,381.47 = 221,865,769.95/x - Step 3: Cross multiply
369,887,643.96x = 554,059,381.47 × 221,865,769.95 - Step 4: Simplify right side
369,887,643.96x = 122,926,811,265,092,016 - Step 5: Solve for x
x = 122,926,811,265,092,016/369,887,643.96 - Step 6: Final answer
x = 332,335,543.71
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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.