Finding the Fourth Proportional to 7,006,470.99, 9,668,931.62 and 3,950,685.87
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Solution
The fourth proportional to 7,006,470.99, 9,668,931.62 and 3,950,685.87 is: 5,451,947.43
Step by Step Solution
- Step 1: Write the proportion equation
7,006,470.99 : 9,668,931.62 = 3,950,685.87 : x - Step 2: Convert to fraction form
7,006,470.99/9,668,931.62 = 3,950,685.87/x - Step 3: Cross multiply
7,006,470.99x = 9,668,931.62 × 3,950,685.87 - Step 4: Simplify right side
7,006,470.99x = 38,198,911,509,376.78 - Step 5: Solve for x
x = 38,198,911,509,376.78/7,006,470.99 - Step 6: Final answer
x = 5,451,947.43
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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.