Finding the Fourth Proportional to 19,872,103.80, 27,426,407.34 and 11,170,993.08
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Solution
The fourth proportional to 19,872,103.80, 27,426,407.34 and 11,170,993.08 is: 15,417,602.97
Step by Step Solution
- Step 1: Write the proportion equation
19,872,103.80 : 27,426,407.34 = 11,170,993.08 : x - Step 2: Convert to fraction form
19,872,103.80/27,426,407.34 = 11,170,993.08/x - Step 3: Cross multiply
19,872,103.80x = 27,426,407.34 × 11,170,993.08 - Step 4: Simplify right side
19,872,103.80x = 306,380,206,604,401.19 - Step 5: Solve for x
x = 306,380,206,604,401.19/19,872,103.80 - Step 6: Final answer
x = 15,417,602.97
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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.