Finding the Fourth Proportional to 19,431,507.36, 29,157,348.58 and 7,925,416.06
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Solution
The fourth proportional to 19,431,507.36, 29,157,348.58 and 7,925,416.06 is: 11,892,238.44
Step by Step Solution
- Step 1: Write the proportion equation
19,431,507.36 : 29,157,348.58 = 7,925,416.06 : x - Step 2: Convert to fraction form
19,431,507.36/29,157,348.58 = 7,925,416.06/x - Step 3: Cross multiply
19,431,507.36x = 29,157,348.58 × 7,925,416.06 - Step 4: Simplify right side
19,431,507.36x = 231,084,118,702,950.16 - Step 5: Solve for x
x = 231,084,118,702,950.16/19,431,507.36 - Step 6: Final answer
x = 11,892,238.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.