Finding the Fourth Proportional to 1,488,577,098.33, 2,054,198,850.30 and 819,515,463.75
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Solution
The fourth proportional to 1,488,577,098.33, 2,054,198,850.30 and 819,515,463.75 is: 1,130,910,669.88
Step by Step Solution
- Step 1: Write the proportion equation
1,488,577,098.33 : 2,054,198,850.30 = 819,515,463.75 : x - Step 2: Convert to fraction form
1,488,577,098.33/2,054,198,850.30 = 819,515,463.75/x - Step 3: Cross multiply
1,488,577,098.33x = 2,054,198,850.30 × 819,515,463.75 - Step 4: Simplify right side
1,488,577,098.33x = 1,683,447,723,438,321,408 - Step 5: Solve for x
x = 1,683,447,723,438,321,408/1,488,577,098.33 - Step 6: Final answer
x = 1,130,910,669.88
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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.