Finding the Fourth Proportional to 19,961,160.20, 27,546,565.80 and 11,020,558.40
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Solution
The fourth proportional to 19,961,160.20, 27,546,565.80 and 11,020,558.40 is: 15,208,461.54
Step by Step Solution
- Step 1: Write the proportion equation
19,961,160.20 : 27,546,565.80 = 11,020,558.40 : x - Step 2: Convert to fraction form
19,961,160.20/27,546,565.80 = 11,020,558.40/x - Step 3: Cross multiply
19,961,160.20x = 27,546,565.80 × 11,020,558.40 - Step 4: Simplify right side
19,961,160.20x = 303,578,537,118,342.75 - Step 5: Solve for x
x = 303,578,537,118,342.75/19,961,160.20 - Step 6: Final answer
x = 15,208,461.54
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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.