Finding the Fourth Proportional to 1,889,613,811.20, 2,834,420,716.80 and 528,005,107.20
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Solution
The fourth proportional to 1,889,613,811.20, 2,834,420,716.80 and 528,005,107.20 is: 792,007,660.80
Step by Step Solution
- Step 1: Write the proportion equation
1,889,613,811.20 : 2,834,420,716.80 = 528,005,107.20 : x - Step 2: Convert to fraction form
1,889,613,811.20/2,834,420,716.80 = 528,005,107.20/x - Step 3: Cross multiply
1,889,613,811.20x = 2,834,420,716.80 × 528,005,107.20 - Step 4: Simplify right side
1,889,613,811.20x = 1,496,588,614,423,884,800 - Step 5: Solve for x
x = 1,496,588,614,423,884,800/1,889,613,811.20 - Step 6: Final answer
x = 792,007,660.80
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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.