Finding the Fourth Proportional to 21,185,210.40, 29,235,472.83 and 11,892,778.02
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Solution
The fourth proportional to 21,185,210.40, 29,235,472.83 and 11,892,778.02 is: 16,411,967.69
Step by Step Solution
- Step 1: Write the proportion equation
21,185,210.40 : 29,235,472.83 = 11,892,778.02 : x - Step 2: Convert to fraction form
21,185,210.40/29,235,472.83 = 11,892,778.02/x - Step 3: Cross multiply
21,185,210.40x = 29,235,472.83 × 11,892,778.02 - Step 4: Simplify right side
21,185,210.40x = 347,690,988,676,931.19 - Step 5: Solve for x
x = 347,690,988,676,931.19/21,185,210.40 - Step 6: Final answer
x = 16,411,967.69
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.