Finding the Fourth Proportional to 13,019,530.74, 19,490,985.74 and 8,690,844.24
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Solution
The fourth proportional to 13,019,530.74, 19,490,985.74 and 8,690,844.24 is: 13,010,693.28
Step by Step Solution
- Step 1: Write the proportion equation
13,019,530.74 : 19,490,985.74 = 8,690,844.24 : x - Step 2: Convert to fraction form
13,019,530.74/19,490,985.74 = 8,690,844.24/x - Step 3: Cross multiply
13,019,530.74x = 19,490,985.74 × 8,690,844.24 - Step 4: Simplify right side
13,019,530.74x = 169,393,121,150,401.12 - Step 5: Solve for x
x = 169,393,121,150,401.12/13,019,530.74 - Step 6: Final answer
x = 13,010,693.28
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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.