Finding the Fourth Proportional to 10,424,786.55, 15,623,561.20 and 5,813,588.79
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Solution
The fourth proportional to 10,424,786.55, 15,623,561.20 and 5,813,588.79 is: 8,712,788.49
Step by Step Solution
- Step 1: Write the proportion equation
10,424,786.55 : 15,623,561.20 = 5,813,588.79 : x - Step 2: Convert to fraction form
10,424,786.55/15,623,561.20 = 5,813,588.79/x - Step 3: Cross multiply
10,424,786.55x = 15,623,561.20 × 5,813,588.79 - Step 4: Simplify right side
10,424,786.55x = 90,828,960,252,198.94 - Step 5: Solve for x
x = 90,828,960,252,198.94/10,424,786.55 - Step 6: Final answer
x = 8,712,788.49
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1.5x scale
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.