Finding the Fourth Proportional to 15,036,387.99, 20,750,224.59 and 8,160,870.06
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Solution
The fourth proportional to 15,036,387.99, 20,750,224.59 and 8,160,870.06 is: 11,262,005.66
Step by Step Solution
- Step 1: Write the proportion equation
15,036,387.99 : 20,750,224.59 = 8,160,870.06 : x - Step 2: Convert to fraction form
15,036,387.99/20,750,224.59 = 8,160,870.06/x - Step 3: Cross multiply
15,036,387.99x = 20,750,224.59 × 8,160,870.06 - Step 4: Simplify right side
15,036,387.99x = 169,339,886,594,806.78 - Step 5: Solve for x
x = 169,339,886,594,806.78/15,036,387.99 - Step 6: Final answer
x = 11,262,005.66
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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.