Finding the Fourth Proportional to 977,414,885.10, 1,466,157,757.05 and 287,391,890.70
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Solution
The fourth proportional to 977,414,885.10, 1,466,157,757.05 and 287,391,890.70 is: 431,098,253.45
Step by Step Solution
- Step 1: Write the proportion equation
977,414,885.10 : 1,466,157,757.05 = 287,391,890.70 : x - Step 2: Convert to fraction form
977,414,885.10/1,466,157,757.05 = 287,391,890.70/x - Step 3: Cross multiply
977,414,885.10x = 1,466,157,757.05 × 287,391,890.70 - Step 4: Simplify right side
977,414,885.10x = 421,361,849,863,070,720 - Step 5: Solve for x
x = 421,361,849,863,070,720/977,414,885.10 - Step 6: Final answer
x = 431,098,253.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.