Finding the Fourth Proportional to 26,430,603.40, 39,645,905.10 and 18,368,446.60
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Solution
The fourth proportional to 26,430,603.40, 39,645,905.10 and 18,368,446.60 is: 27,552,669.90
Step by Step Solution
- Step 1: Write the proportion equation
26,430,603.40 : 39,645,905.10 = 18,368,446.60 : x - Step 2: Convert to fraction form
26,430,603.40/39,645,905.10 = 18,368,446.60/x - Step 3: Cross multiply
26,430,603.40x = 39,645,905.10 × 18,368,446.60 - Step 4: Simplify right side
26,430,603.40x = 728,233,690,738,017.75 - Step 5: Solve for x
x = 728,233,690,738,017.75/26,430,603.40 - Step 6: Final answer
x = 27,552,669.90
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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.