Finding the Fourth Proportional to 1,178,269,589.32, 1,767,585,987.34 and 401,733,646.68
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Solution
The fourth proportional to 1,178,269,589.32, 1,767,585,987.34 and 401,733,646.68 is: 602,662,388.09
Step by Step Solution
- Step 1: Write the proportion equation
1,178,269,589.32 : 1,767,585,987.34 = 401,733,646.68 : x - Step 2: Convert to fraction form
1,178,269,589.32/1,767,585,987.34 = 401,733,646.68/x - Step 3: Cross multiply
1,178,269,589.32x = 1,767,585,987.34 × 401,733,646.68 - Step 4: Simplify right side
1,178,269,589.32x = 710,098,764,514,566,528 - Step 5: Solve for x
x = 710,098,764,514,566,528/1,178,269,589.32 - Step 6: Final answer
x = 602,662,388.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.