Finding the Fourth Proportional to 15,312,816.96, 21,133,176.58 and 11,438,612.07
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Solution
The fourth proportional to 15,312,816.96, 21,133,176.58 and 11,438,612.07 is: 15,786,397.06
Step by Step Solution
- Step 1: Write the proportion equation
15,312,816.96 : 21,133,176.58 = 11,438,612.07 : x - Step 2: Convert to fraction form
15,312,816.96/21,133,176.58 = 11,438,612.07/x - Step 3: Cross multiply
15,312,816.96x = 21,133,176.58 × 11,438,612.07 - Step 4: Simplify right side
15,312,816.96x = 241,734,208,640,478.19 - Step 5: Solve for x
x = 241,734,208,640,478.19/15,312,816.96 - Step 6: Final answer
x = 15,786,397.06
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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.