Finding the Fourth Proportional to 75,189,729.75, 103,761,827.06 and 42,594,681.75
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Solution
The fourth proportional to 75,189,729.75, 103,761,827.06 and 42,594,681.75 is: 58,780,660.82
Step by Step Solution
- Step 1: Write the proportion equation
75,189,729.75 : 103,761,827.06 = 42,594,681.75 : x - Step 2: Convert to fraction form
75,189,729.75/103,761,827.06 = 42,594,681.75/x - Step 3: Cross multiply
75,189,729.75x = 103,761,827.06 × 42,594,681.75 - Step 4: Simplify right side
75,189,729.75x = 4,419,702,001,206,265 - Step 5: Solve for x
x = 4,419,702,001,206,265/75,189,729.75 - Step 6: Final answer
x = 58,780,660.82
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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.