Finding the Fourth Proportional to 15,149,549.70, 21,263,177.99 and 15,149,549.70
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Solution
The fourth proportional to 15,149,549.70, 21,263,177.99 and 15,149,549.70 is: 21,263,177.99
Step by Step Solution
- Step 1: Write the proportion equation
15,149,549.70 : 21,263,177.99 = 15,149,549.70 : x - Step 2: Convert to fraction form
15,149,549.70/21,263,177.99 = 15,149,549.70/x - Step 3: Cross multiply
15,149,549.70x = 21,263,177.99 × 15,149,549.70 - Step 4: Simplify right side
15,149,549.70x = 322,127,571,739,451.06 - Step 5: Solve for x
x = 322,127,571,739,451.06/15,149,549.70 - Step 6: Final answer
x = 21,263,177.99
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.