Finding the Fourth Proportional to 1,287,950,664.08, 1,932,236,579.99 and 447,471,079.11
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Solution
The fourth proportional to 1,287,950,664.08, 1,932,236,579.99 and 447,471,079.11 is: 671,314,524.43
Step by Step Solution
- Step 1: Write the proportion equation
1,287,950,664.08 : 1,932,236,579.99 = 447,471,079.11 : x - Step 2: Convert to fraction form
1,287,950,664.08/1,932,236,579.99 = 447,471,079.11/x - Step 3: Cross multiply
1,287,950,664.08x = 1,932,236,579.99 × 447,471,079.11 - Step 4: Simplify right side
1,287,950,664.08x = 864,619,987,545,059,840 - Step 5: Solve for x
x = 864,619,987,545,059,840/1,287,950,664.08 - Step 6: Final answer
x = 671,314,524.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.