Finding the Fourth Proportional to 10,430,098.80, 15,613,655.40 and 9,170,386.80
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Solution
The fourth proportional to 10,430,098.80, 15,613,655.40 and 9,170,386.80 is: 13,727,890.99
Step by Step Solution
- Step 1: Write the proportion equation
10,430,098.80 : 15,613,655.40 = 9,170,386.80 : x - Step 2: Convert to fraction form
10,430,098.80/15,613,655.40 = 9,170,386.80/x - Step 3: Cross multiply
10,430,098.80x = 15,613,655.40 × 9,170,386.80 - Step 4: Simplify right side
10,430,098.80x = 143,183,259,379,908.75 - Step 5: Solve for x
x = 143,183,259,379,908.75/10,430,098.80 - Step 6: Final answer
x = 13,727,890.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.