Finding the Fourth Proportional to 15,519,430.62, 21,418,484.74 and 8,550,808.74
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Solution
The fourth proportional to 15,519,430.62, 21,418,484.74 and 8,550,808.74 is: 11,801,036.46
Step by Step Solution
- Step 1: Write the proportion equation
15,519,430.62 : 21,418,484.74 = 8,550,808.74 : x - Step 2: Convert to fraction form
15,519,430.62/21,418,484.74 = 8,550,808.74/x - Step 3: Cross multiply
15,519,430.62x = 21,418,484.74 × 8,550,808.74 - Step 4: Simplify right side
15,519,430.62x = 183,145,366,512,348.62 - Step 5: Solve for x
x = 183,145,366,512,348.62/15,519,430.62 - Step 6: Final answer
x = 11,801,036.46
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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.