Finding the Fourth Proportional to 390,157,044.94, 585,734,987.10 and 335,176,629.67
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Solution
The fourth proportional to 390,157,044.94, 585,734,987.10 and 335,176,629.67 is: 503,193,986.63
Step by Step Solution
- Step 1: Write the proportion equation
390,157,044.94 : 585,734,987.10 = 335,176,629.67 : x - Step 2: Convert to fraction form
390,157,044.94/585,734,987.10 = 335,176,629.67/x - Step 3: Cross multiply
390,157,044.94x = 585,734,987.10 × 335,176,629.67 - Step 4: Simplify right side
390,157,044.94x = 196,324,678,855,978,944 - Step 5: Solve for x
x = 196,324,678,855,978,944/390,157,044.94 - Step 6: Final answer
x = 503,193,986.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.