Finding the Fourth Proportional to 1,458,573,950.42, 2,012,078,827.68 and 988,514,517.14
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Solution
The fourth proportional to 1,458,573,950.42, 2,012,078,827.68 and 988,514,517.14 is: 1,363,639,553.70
Step by Step Solution
- Step 1: Write the proportion equation
1,458,573,950.42 : 2,012,078,827.68 = 988,514,517.14 : x - Step 2: Convert to fraction form
1,458,573,950.42/2,012,078,827.68 = 988,514,517.14/x - Step 3: Cross multiply
1,458,573,950.42x = 2,012,078,827.68 × 988,514,517.14 - Step 4: Simplify right side
1,458,573,950.42x = 1,988,969,130,791,712,512 - Step 5: Solve for x
x = 1,988,969,130,791,712,512/1,458,573,950.42 - Step 6: Final answer
x = 1,363,639,553.70
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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.