Finding the Fourth Proportional to 14,427,780.30, 19,911,476.16 and 8,231,403.96
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Solution
The fourth proportional to 14,427,780.30, 19,911,476.16 and 8,231,403.96 is: 11,359,987.49
Step by Step Solution
- Step 1: Write the proportion equation
14,427,780.30 : 19,911,476.16 = 8,231,403.96 : x - Step 2: Convert to fraction form
14,427,780.30/19,911,476.16 = 8,231,403.96/x - Step 3: Cross multiply
14,427,780.30x = 19,911,476.16 × 8,231,403.96 - Step 4: Simplify right side
14,427,780.30x = 163,899,403,712,869.59 - Step 5: Solve for x
x = 163,899,403,712,869.59/14,427,780.30 - Step 6: Final answer
x = 11,359,987.49
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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.