Finding the Fourth Proportional to 5,727,913.98, 7,904,805.30 and 3,553,157.70
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Solution
The fourth proportional to 5,727,913.98, 7,904,805.30 and 3,553,157.70 is: 4,903,533.80
Step by Step Solution
- Step 1: Write the proportion equation
5,727,913.98 : 7,904,805.30 = 3,553,157.70 : x - Step 2: Convert to fraction form
5,727,913.98/7,904,805.30 = 3,553,157.70/x - Step 3: Cross multiply
5,727,913.98x = 7,904,805.30 × 3,553,157.70 - Step 4: Simplify right side
5,727,913.98x = 28,087,019,818,695.81 - Step 5: Solve for x
x = 28,087,019,818,695.81/5,727,913.98 - Step 6: Final answer
x = 4,903,533.80
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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.