Finding the Fourth Proportional to 11,038,021.98, 15,219,435.21 and 7,555,042.26
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Solution
The fourth proportional to 11,038,021.98, 15,219,435.21 and 7,555,042.26 is: 10,417,036.35
Step by Step Solution
- Step 1: Write the proportion equation
11,038,021.98 : 15,219,435.21 = 7,555,042.26 : x - Step 2: Convert to fraction form
11,038,021.98/15,219,435.21 = 7,555,042.26/x - Step 3: Cross multiply
11,038,021.98x = 15,219,435.21 × 7,555,042.26 - Step 4: Simplify right side
11,038,021.98x = 114,983,476,184,881.98 - Step 5: Solve for x
x = 114,983,476,184,881.98/11,038,021.98 - Step 6: Final answer
x = 10,417,036.35
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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.