Finding the Fourth Proportional to 306,617,986.10, 423,130,668.30 and 167,388,747.87
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Solution
The fourth proportional to 306,617,986.10, 423,130,668.30 and 167,388,747.87 is: 230,995,296.96
Step by Step Solution
- Step 1: Write the proportion equation
306,617,986.10 : 423,130,668.30 = 167,388,747.87 : x - Step 2: Convert to fraction form
306,617,986.10/423,130,668.30 = 167,388,747.87/x - Step 3: Cross multiply
306,617,986.10x = 423,130,668.30 × 167,388,747.87 - Step 4: Simplify right side
306,617,986.10x = 70,827,312,753,048,272 - Step 5: Solve for x
x = 70,827,312,753,048,272/306,617,986.10 - Step 6: Final answer
x = 230,995,296.96
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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.