Finding the Fourth Proportional to 15,739,326.09, 21,720,314.99 and 9,125,199.93
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Solution
The fourth proportional to 15,739,326.09, 21,720,314.99 and 9,125,199.93 is: 12,592,801.99
Step by Step Solution
- Step 1: Write the proportion equation
15,739,326.09 : 21,720,314.99 = 9,125,199.93 : x - Step 2: Convert to fraction form
15,739,326.09/21,720,314.99 = 9,125,199.93/x - Step 3: Cross multiply
15,739,326.09x = 21,720,314.99 × 9,125,199.93 - Step 4: Simplify right side
15,739,326.09x = 198,202,216,903,439.72 - Step 5: Solve for x
x = 198,202,216,903,439.72/15,739,326.09 - Step 6: Final answer
x = 12,592,801.99
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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.