Finding the Fourth Proportional to 4,920,783.30, 7,381,174.95 and 2,653,301.70
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Solution
The fourth proportional to 4,920,783.30, 7,381,174.95 and 2,653,301.70 is: 3,979,952.55
Step by Step Solution
- Step 1: Write the proportion equation
4,920,783.30 : 7,381,174.95 = 2,653,301.70 : x - Step 2: Convert to fraction form
4,920,783.30/7,381,174.95 = 2,653,301.70/x - Step 3: Cross multiply
4,920,783.30x = 7,381,174.95 × 2,653,301.70 - Step 4: Simplify right side
4,920,783.30x = 19,584,484,042,832.42 - Step 5: Solve for x
x = 19,584,484,042,832.42/4,920,783.30 - Step 6: Final answer
x = 3,979,952.55
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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.