Finding the Fourth Proportional to 4,921,871.14, 6,791,167.99 and 2,828,308.78
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Solution
The fourth proportional to 4,921,871.14, 6,791,167.99 and 2,828,308.78 is: 3,902,483.32
Step by Step Solution
- Step 1: Write the proportion equation
4,921,871.14 : 6,791,167.99 = 2,828,308.78 : x - Step 2: Convert to fraction form
4,921,871.14/6,791,167.99 = 2,828,308.78/x - Step 3: Cross multiply
4,921,871.14x = 6,791,167.99 × 2,828,308.78 - Step 4: Simplify right side
4,921,871.14x = 19,207,520,018,616.11 - Step 5: Solve for x
x = 19,207,520,018,616.11/4,921,871.14 - Step 6: Final answer
x = 3,902,483.32
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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.