Finding the Fourth Proportional to 1,358,395,392.28, 1,874,574,372.68 and 763,682,527.55
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Solution
The fourth proportional to 1,358,395,392.28, 1,874,574,372.68 and 763,682,527.55 is: 1,053,875,552.84
Step by Step Solution
- Step 1: Write the proportion equation
1,358,395,392.28 : 1,874,574,372.68 = 763,682,527.55 : x - Step 2: Convert to fraction form
1,358,395,392.28/1,874,574,372.68 = 763,682,527.55/x - Step 3: Cross multiply
1,358,395,392.28x = 1,874,574,372.68 × 763,682,527.55 - Step 4: Simplify right side
1,358,395,392.28x = 1,431,579,695,008,718,080 - Step 5: Solve for x
x = 1,431,579,695,008,718,080/1,358,395,392.28 - Step 6: Final answer
x = 1,053,875,552.84
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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.