Finding the Fourth Proportional to 396,559,315.13, 547,227,864.93 and 220,341,285.05
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Solution
The fourth proportional to 396,559,315.13, 547,227,864.93 and 220,341,285.05 is: 304,057,643.77
Step by Step Solution
- Step 1: Write the proportion equation
396,559,315.13 : 547,227,864.93 = 220,341,285.05 : x - Step 2: Convert to fraction form
396,559,315.13/547,227,864.93 = 220,341,285.05/x - Step 3: Cross multiply
396,559,315.13x = 547,227,864.93 × 220,341,285.05 - Step 4: Simplify right side
396,559,315.13x = 120,576,890,973,844,016 - Step 5: Solve for x
x = 120,576,890,973,844,016/396,559,315.13 - Step 6: Final answer
x = 304,057,643.77
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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.