Finding the Fourth Proportional to 11,742,365.20, 17,613,547.80 and 8,540,726.80
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Solution
The fourth proportional to 11,742,365.20, 17,613,547.80 and 8,540,726.80 is: 12,811,090.20
Step by Step Solution
- Step 1: Write the proportion equation
11,742,365.20 : 17,613,547.80 = 8,540,726.80 : x - Step 2: Convert to fraction form
11,742,365.20/17,613,547.80 = 8,540,726.80/x - Step 3: Cross multiply
11,742,365.20x = 17,613,547.80 × 8,540,726.80 - Step 4: Simplify right side
11,742,365.20x = 150,432,499,738,541.06 - Step 5: Solve for x
x = 150,432,499,738,541.06/11,742,365.20 - Step 6: Final answer
x = 12,811,090.20
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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.