Finding the Fourth Proportional to 5,253,752.70, 7,879,976.79 and 1,415,875.36
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Solution
The fourth proportional to 5,253,752.70, 7,879,976.79 and 1,415,875.36 is: 2,123,637.26
Step by Step Solution
- Step 1: Write the proportion equation
5,253,752.70 : 7,879,976.79 = 1,415,875.36 : x - Step 2: Convert to fraction form
5,253,752.70/7,879,976.79 = 1,415,875.36/x - Step 3: Cross multiply
5,253,752.70x = 7,879,976.79 × 1,415,875.36 - Step 4: Simplify right side
5,253,752.70x = 11,157,064,974,332.89 - Step 5: Solve for x
x = 11,157,064,974,332.89/5,253,752.70 - Step 6: Final answer
x = 2,123,637.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.