Finding the Fourth Proportional to 19,752,909.87, 27,253,758.92 and 13,559,850.75
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Solution
The fourth proportional to 19,752,909.87, 27,253,758.92 and 13,559,850.75 is: 18,708,985.45
Step by Step Solution
- Step 1: Write the proportion equation
19,752,909.87 : 27,253,758.92 = 13,559,850.75 : x - Step 2: Convert to fraction form
19,752,909.87/27,253,758.92 = 13,559,850.75/x - Step 3: Cross multiply
19,752,909.87x = 27,253,758.92 × 13,559,850.75 - Step 4: Simplify right side
19,752,909.87x = 369,556,903,263,881.94 - Step 5: Solve for x
x = 369,556,903,263,881.94/19,752,909.87 - Step 6: Final answer
x = 18,708,985.45
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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.