Finding the Fourth Proportional to 1,455,520,635.36, 2,182,959,475.92 and 420,156,534.24
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Solution
The fourth proportional to 1,455,520,635.36, 2,182,959,475.92 and 420,156,534.24 is: 630,142,002.46
Step by Step Solution
- Step 1: Write the proportion equation
1,455,520,635.36 : 2,182,959,475.92 = 420,156,534.24 : x - Step 2: Convert to fraction form
1,455,520,635.36/2,182,959,475.92 = 420,156,534.24/x - Step 3: Cross multiply
1,455,520,635.36x = 2,182,959,475.92 × 420,156,534.24 - Step 4: Simplify right side
1,455,520,635.36x = 917,184,687,788,914,048 - Step 5: Solve for x
x = 917,184,687,788,914,048/1,455,520,635.36 - Step 6: Final answer
x = 630,142,002.46
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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.