Finding the Fourth Proportional to 1,358,395,396.26, 1,874,574,378.18 and 763,682,531.58
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Solution
The fourth proportional to 1,358,395,396.26, 1,874,574,378.18 and 763,682,531.58 is: 1,053,875,558.40
Step by Step Solution
- Step 1: Write the proportion equation
1,358,395,396.26 : 1,874,574,378.18 = 763,682,531.58 : x - Step 2: Convert to fraction form
1,358,395,396.26/1,874,574,378.18 = 763,682,531.58/x - Step 3: Cross multiply
1,358,395,396.26x = 1,874,574,378.18 × 763,682,531.58 - Step 4: Simplify right side
1,358,395,396.26x = 1,431,579,706,763,506,944 - Step 5: Solve for x
x = 1,431,579,706,763,506,944/1,358,395,396.26 - Step 6: Final answer
x = 1,053,875,558.40
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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.