Finding the Fourth Proportional to 5,155,123.87, 7,113,280.12 and 2,979,246.84
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Solution
The fourth proportional to 5,155,123.87, 7,113,280.12 and 2,979,246.84 is: 4,110,903.61
Step by Step Solution
- Step 1: Write the proportion equation
5,155,123.87 : 7,113,280.12 = 2,979,246.84 : x - Step 2: Convert to fraction form
5,155,123.87/7,113,280.12 = 2,979,246.84/x - Step 3: Cross multiply
5,155,123.87x = 7,113,280.12 × 2,979,246.84 - Step 4: Simplify right side
5,155,123.87x = 21,192,217,342,192.37 - Step 5: Solve for x
x = 21,192,217,342,192.37/5,155,123.87 - Step 6: Final answer
x = 4,110,903.61
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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.