Finding the Fourth Proportional to 5,155,158.13, 7,113,327.37 and 2,979,281.06
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Solution
The fourth proportional to 5,155,158.13, 7,113,327.37 and 2,979,281.06 is: 4,110,950.81
Step by Step Solution
- Step 1: Write the proportion equation
5,155,158.13 : 7,113,327.37 = 2,979,281.06 : x - Step 2: Convert to fraction form
5,155,158.13/7,113,327.37 = 2,979,281.06/x - Step 3: Cross multiply
5,155,158.13x = 7,113,327.37 × 2,979,281.06 - Step 4: Simplify right side
5,155,158.13x = 21,192,601,490,680.75 - Step 5: Solve for x
x = 21,192,601,490,680.75/5,155,158.13 - Step 6: Final answer
x = 4,110,950.81
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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.