Finding the Fourth Proportional to 38,440,406.66, 53,047,726.60 and 21,698,670.90
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Solution
The fourth proportional to 38,440,406.66, 53,047,726.60 and 21,698,670.90 is: 29,944,146.32
Step by Step Solution
- Step 1: Write the proportion equation
38,440,406.66 : 53,047,726.60 = 21,698,670.90 : x - Step 2: Convert to fraction form
38,440,406.66/53,047,726.60 = 21,698,670.90/x - Step 3: Cross multiply
38,440,406.66x = 53,047,726.60 × 21,698,670.90 - Step 4: Simplify right side
38,440,406.66x = 1,151,065,161,486,576 - Step 5: Solve for x
x = 1,151,065,161,486,576/38,440,406.66 - Step 6: Final answer
x = 29,944,146.32
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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.