Finding the Fourth Proportional to 306,617,989.48, 423,130,672.97 and 167,388,751.26
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Solution
The fourth proportional to 306,617,989.48, 423,130,672.97 and 167,388,751.26 is: 230,995,301.64
Step by Step Solution
- Step 1: Write the proportion equation
306,617,989.48 : 423,130,672.97 = 167,388,751.26 : x - Step 2: Convert to fraction form
306,617,989.48/423,130,672.97 = 167,388,751.26/x - Step 3: Cross multiply
306,617,989.48x = 423,130,672.97 × 167,388,751.26 - Step 4: Simplify right side
306,617,989.48x = 70,827,314,968,042,496 - Step 5: Solve for x
x = 70,827,314,968,042,496/306,617,989.48 - Step 6: Final answer
x = 230,995,301.64
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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.