Finding the Fourth Proportional to 9,174,815.70, 13,772,721.15 and 5,390,430.90
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Solution
The fourth proportional to 9,174,815.70, 13,772,721.15 and 5,390,430.90 is: 8,091,813.95
Step by Step Solution
- Step 1: Write the proportion equation
9,174,815.70 : 13,772,721.15 = 5,390,430.90 : x - Step 2: Convert to fraction form
9,174,815.70/13,772,721.15 = 5,390,430.90/x - Step 3: Cross multiply
9,174,815.70x = 13,772,721.15 × 5,390,430.90 - Step 4: Simplify right side
9,174,815.70x = 74,240,901,664,043.55 - Step 5: Solve for x
x = 74,240,901,664,043.55/9,174,815.70 - Step 6: Final answer
x = 8,091,813.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.