Finding the Fourth Proportional to 38,903,769.94, 53,687,369.28 and 21,263,027.80
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Solution
The fourth proportional to 38,903,769.94, 53,687,369.28 and 21,263,027.80 is: 29,343,069.51
Step by Step Solution
- Step 1: Write the proportion equation
38,903,769.94 : 53,687,369.28 = 21,263,027.80 : x - Step 2: Convert to fraction form
38,903,769.94/53,687,369.28 = 21,263,027.80/x - Step 3: Cross multiply
38,903,769.94x = 53,687,369.28 × 21,263,027.80 - Step 4: Simplify right side
38,903,769.94x = 1,141,556,025,509,506 - Step 5: Solve for x
x = 1,141,556,025,509,506/38,903,769.94 - Step 6: Final answer
x = 29,343,069.51
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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.