Finding the Fourth Proportional to 15,316,133.99, 21,136,265.33 and 8,440,616.05
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Solution
The fourth proportional to 15,316,133.99, 21,136,265.33 and 8,440,616.05 is: 11,648,050.38
Step by Step Solution
- Step 1: Write the proportion equation
15,316,133.99 : 21,136,265.33 = 8,440,616.05 : x - Step 2: Convert to fraction form
15,316,133.99/21,136,265.33 = 8,440,616.05/x - Step 3: Cross multiply
15,316,133.99x = 21,136,265.33 × 8,440,616.05 - Step 4: Simplify right side
15,316,133.99x = 178,403,100,286,412.78 - Step 5: Solve for x
x = 178,403,100,286,412.78/15,316,133.99 - Step 6: Final answer
x = 11,648,050.38
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1.5x scale
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.