Finding the Fourth Proportional to 21,663,183.13, 29,895,915.70 and 11,873,652.40
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Solution
The fourth proportional to 21,663,183.13, 29,895,915.70 and 11,873,652.40 is: 16,386,036.58
Step by Step Solution
- Step 1: Write the proportion equation
21,663,183.13 : 29,895,915.70 = 11,873,652.40 : x - Step 2: Convert to fraction form
21,663,183.13/29,895,915.70 = 11,873,652.40/x - Step 3: Cross multiply
21,663,183.13x = 29,895,915.70 × 11,873,652.40 - Step 4: Simplify right side
21,663,183.13x = 354,973,711,201,502.69 - Step 5: Solve for x
x = 354,973,711,201,502.69/21,663,183.13 - Step 6: Final answer
x = 16,386,036.58
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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.