Finding the Fourth Proportional to 468,971,473.26, 647,178,559.92 and 268,024,995.21
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Solution
The fourth proportional to 468,971,473.26, 647,178,559.92 and 268,024,995.21 is: 369,873,308.53
Step by Step Solution
- Step 1: Write the proportion equation
468,971,473.26 : 647,178,559.92 = 268,024,995.21 : x - Step 2: Convert to fraction form
468,971,473.26/647,178,559.92 = 268,024,995.21/x - Step 3: Cross multiply
468,971,473.26x = 647,178,559.92 × 268,024,995.21 - Step 4: Simplify right side
468,971,473.26x = 173,460,030,422,572,704 - Step 5: Solve for x
x = 173,460,030,422,572,704/468,971,473.26 - Step 6: Final answer
x = 369,873,308.53
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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.