Finding the Fourth Proportional to 19,960,433.48, 29,927,777.36 and 7,831,122.78
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Solution
The fourth proportional to 19,960,433.48, 29,927,777.36 and 7,831,122.78 is: 11,741,633.73
Step by Step Solution
- Step 1: Write the proportion equation
19,960,433.48 : 29,927,777.36 = 7,831,122.78 : x - Step 2: Convert to fraction form
19,960,433.48/29,927,777.36 = 7,831,122.78/x - Step 3: Cross multiply
19,960,433.48x = 29,927,777.36 × 7,831,122.78 - Step 4: Simplify right side
19,960,433.48x = 234,368,099,038,664.25 - Step 5: Solve for x
x = 234,368,099,038,664.25/19,960,433.48 - Step 6: Final answer
x = 11,741,633.73
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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.