Finding the Fourth Proportional to 1,180,998,454.80, 1,771,497,682.20 and 490,676,278.80
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Solution
The fourth proportional to 1,180,998,454.80, 1,771,497,682.20 and 490,676,278.80 is: 736,014,418.20
Step by Step Solution
- Step 1: Write the proportion equation
1,180,998,454.80 : 1,771,497,682.20 = 490,676,278.80 : x - Step 2: Convert to fraction form
1,180,998,454.80/1,771,497,682.20 = 490,676,278.80/x - Step 3: Cross multiply
1,180,998,454.80x = 1,771,497,682.20 × 490,676,278.80 - Step 4: Simplify right side
1,180,998,454.80x = 869,231,890,604,721,024 - Step 5: Solve for x
x = 869,231,890,604,721,024/1,180,998,454.80 - Step 6: Final answer
x = 736,014,418.20
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1.5x scale
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.