Finding the Fourth Proportional to 5,478,663.60, 7,560,778.58 and 3,031,235.04
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Solution
The fourth proportional to 5,478,663.60, 7,560,778.58 and 3,031,235.04 is: 4,183,227.63
Step by Step Solution
- Step 1: Write the proportion equation
5,478,663.60 : 7,560,778.58 = 3,031,235.04 : x - Step 2: Convert to fraction form
5,478,663.60/7,560,778.58 = 3,031,235.04/x - Step 3: Cross multiply
5,478,663.60x = 7,560,778.58 × 3,031,235.04 - Step 4: Simplify right side
5,478,663.60x = 22,918,496,961,377.45 - Step 5: Solve for x
x = 22,918,496,961,377.45/5,478,663.60 - Step 6: Final answer
x = 4,183,227.63
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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.