Finding the Fourth Proportional to 1,394,165,414.90, 2,091,248,122.35 and 1,243,671,821.30
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Solution
The fourth proportional to 1,394,165,414.90, 2,091,248,122.35 and 1,243,671,821.30 is: 1,865,507,731.95
Step by Step Solution
- Step 1: Write the proportion equation
1,394,165,414.90 : 2,091,248,122.35 = 1,243,671,821.30 : x - Step 2: Convert to fraction form
1,394,165,414.90/2,091,248,122.35 = 1,243,671,821.30/x - Step 3: Cross multiply
1,394,165,414.90x = 2,091,248,122.35 × 1,243,671,821.30 - Step 4: Simplify right side
1,394,165,414.90x = 2,600,826,361,113,229,312 - Step 5: Solve for x
x = 2,600,826,361,113,229,312/1,394,165,414.90 - Step 6: Final answer
x = 1,865,507,731.95
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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.