Finding the Fourth Proportional to 19,818,416.25, 27,349,358.49 and 10,999,199.09
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Solution
The fourth proportional to 19,818,416.25, 27,349,358.49 and 10,999,199.09 is: 15,178,863.70
Step by Step Solution
- Step 1: Write the proportion equation
19,818,416.25 : 27,349,358.49 = 10,999,199.09 : x - Step 2: Convert to fraction form
19,818,416.25/27,349,358.49 = 10,999,199.09/x - Step 3: Cross multiply
19,818,416.25x = 27,349,358.49 × 10,999,199.09 - Step 4: Simplify right side
19,818,416.25x = 300,821,039,083,665.12 - Step 5: Solve for x
x = 300,821,039,083,665.12/19,818,416.25 - Step 6: Final answer
x = 15,178,863.70
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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.