Finding the Fourth Proportional to 1,665,420,278.40, 2,496,338,827.20 and 629,881,027.20
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Solution
The fourth proportional to 1,665,420,278.40, 2,496,338,827.20 and 629,881,027.20 is: 944,143,940.79
Step by Step Solution
- Step 1: Write the proportion equation
1,665,420,278.40 : 2,496,338,827.20 = 629,881,027.20 : x - Step 2: Convert to fraction form
1,665,420,278.40/2,496,338,827.20 = 629,881,027.20/x - Step 3: Cross multiply
1,665,420,278.40x = 2,496,338,827.20 × 629,881,027.20 - Step 4: Simplify right side
1,665,420,278.40x = 1,572,396,464,715,979,264 - Step 5: Solve for x
x = 1,572,396,464,715,979,264/1,665,420,278.40 - Step 6: Final answer
x = 944,143,940.79
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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.