Finding the Fourth Proportional to 1,358,395,397.26, 1,874,574,379.56 and 763,682,532.58
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Solution
The fourth proportional to 1,358,395,397.26, 1,874,574,379.56 and 763,682,532.58 is: 1,053,875,559.78
Step by Step Solution
- Step 1: Write the proportion equation
1,358,395,397.26 : 1,874,574,379.56 = 763,682,532.58 : x - Step 2: Convert to fraction form
1,358,395,397.26/1,874,574,379.56 = 763,682,532.58/x - Step 3: Cross multiply
1,358,395,397.26x = 1,874,574,379.56 × 763,682,532.58 - Step 4: Simplify right side
1,358,395,397.26x = 1,431,579,709,691,963,136 - Step 5: Solve for x
x = 1,431,579,709,691,963,136/1,358,395,397.26 - Step 6: Final answer
x = 1,053,875,559.78
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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.