Finding the Fourth Proportional to 18,432,726.30, 27,649,089.45 and 5,655,203.10
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Solution
The fourth proportional to 18,432,726.30, 27,649,089.45 and 5,655,203.10 is: 8,482,804.65
Step by Step Solution
- Step 1: Write the proportion equation
18,432,726.30 : 27,649,089.45 = 5,655,203.10 : x - Step 2: Convert to fraction form
18,432,726.30/27,649,089.45 = 5,655,203.10/x - Step 3: Cross multiply
18,432,726.30x = 27,649,089.45 × 5,655,203.10 - Step 4: Simplify right side
18,432,726.30x = 156,361,216,369,817.28 - Step 5: Solve for x
x = 156,361,216,369,817.28/18,432,726.30 - Step 6: Final answer
x = 8,482,804.65
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Double scale
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1.5x scale
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.