Finding the Fourth Proportional to 27,585,743.16, 38,071,315.47 and 15,197,106.09
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Solution
The fourth proportional to 27,585,743.16, 38,071,315.47 and 15,197,106.09 is: 20,973,653.56
Step by Step Solution
- Step 1: Write the proportion equation
27,585,743.16 : 38,071,315.47 = 15,197,106.09 : x - Step 2: Convert to fraction form
27,585,743.16/38,071,315.47 = 15,197,106.09/x - Step 3: Cross multiply
27,585,743.16x = 38,071,315.47 × 15,197,106.09 - Step 4: Simplify right side
27,585,743.16x = 578,573,820,183,448.25 - Step 5: Solve for x
x = 578,573,820,183,448.25/27,585,743.16 - Step 6: Final answer
x = 20,973,653.56
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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.