Finding the Fourth Proportional to 39,070,048.68, 53,918,409.78 and 21,665,224.71
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Solution
The fourth proportional to 39,070,048.68, 53,918,409.78 and 21,665,224.71 is: 29,898,976.41
Step by Step Solution
- Step 1: Write the proportion equation
39,070,048.68 : 53,918,409.78 = 21,665,224.71 : x - Step 2: Convert to fraction form
39,070,048.68/53,918,409.78 = 21,665,224.71/x - Step 3: Cross multiply
39,070,048.68x = 53,918,409.78 × 21,665,224.71 - Step 4: Simplify right side
39,070,048.68x = 1,168,154,463,889,561.75 - Step 5: Solve for x
x = 1,168,154,463,889,561.75/39,070,048.68 - Step 6: Final answer
x = 29,898,976.41
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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.