Finding the Fourth Proportional to 216,862,732.12, 299,297,535.42 and 124,030,355.80
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Solution
The fourth proportional to 216,862,732.12, 299,297,535.42 and 124,030,355.80 is: 171,177,313.16
Step by Step Solution
- Step 1: Write the proportion equation
216,862,732.12 : 299,297,535.42 = 124,030,355.80 : x - Step 2: Convert to fraction form
216,862,732.12/299,297,535.42 = 124,030,355.80/x - Step 3: Cross multiply
216,862,732.12x = 299,297,535.42 × 124,030,355.80 - Step 4: Simplify right side
216,862,732.12x = 37,121,979,808,205,704 - Step 5: Solve for x
x = 37,121,979,808,205,704/216,862,732.12 - Step 6: Final answer
x = 171,177,313.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.