Finding the Fourth Proportional to 19,555,406.07, 26,991,421.12 and 13,362,959.31
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Solution
The fourth proportional to 19,555,406.07, 26,991,421.12 and 13,362,959.31 is: 18,444,273.71
Step by Step Solution
- Step 1: Write the proportion equation
19,555,406.07 : 26,991,421.12 = 13,362,959.31 : x - Step 2: Convert to fraction form
19,555,406.07/26,991,421.12 = 13,362,959.31/x - Step 3: Cross multiply
19,555,406.07x = 26,991,421.12 × 13,362,959.31 - Step 4: Simplify right side
19,555,406.07x = 360,685,262,145,634.62 - Step 5: Solve for x
x = 360,685,262,145,634.62/19,555,406.07 - Step 6: Final answer
x = 18,444,273.71
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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.