Finding the Fourth Proportional to 48,721,353.68, 67,218,915.90 and 27,798,355.44
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Solution
The fourth proportional to 48,721,353.68, 67,218,915.90 and 27,798,355.44 is: 38,352,286.53
Step by Step Solution
- Step 1: Write the proportion equation
48,721,353.68 : 67,218,915.90 = 27,798,355.44 : x - Step 2: Convert to fraction form
48,721,353.68/67,218,915.90 = 27,798,355.44/x - Step 3: Cross multiply
48,721,353.68x = 67,218,915.90 × 27,798,355.44 - Step 4: Simplify right side
48,721,353.68x = 1,868,575,316,479,667.75 - Step 5: Solve for x
x = 1,868,575,316,479,667.75/48,721,353.68 - Step 6: Final answer
x = 38,352,286.53
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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.