Finding the Fourth Proportional to 19,291,809.18, 26,585,998.11 and 18,937,272.78
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Solution
The fourth proportional to 19,291,809.18, 26,585,998.11 and 18,937,272.78 is: 26,097,412.31
Step by Step Solution
- Step 1: Write the proportion equation
19,291,809.18 : 26,585,998.11 = 18,937,272.78 : x - Step 2: Convert to fraction form
19,291,809.18/26,585,998.11 = 18,937,272.78/x - Step 3: Cross multiply
19,291,809.18x = 26,585,998.11 × 18,937,272.78 - Step 4: Simplify right side
19,291,809.18x = 503,466,298,337,634.44 - Step 5: Solve for x
x = 503,466,298,337,634.44/19,291,809.18 - Step 6: Final answer
x = 26,097,412.31
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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.