Finding the Fourth Proportional to 78,130,503.12, 117,184,344.90 and 22,783,465.92
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Solution
The fourth proportional to 78,130,503.12, 117,184,344.90 and 22,783,465.92 is: 34,171,871.70
Step by Step Solution
- Step 1: Write the proportion equation
78,130,503.12 : 117,184,344.90 = 22,783,465.92 : x - Step 2: Convert to fraction form
78,130,503.12/117,184,344.90 = 22,783,465.92/x - Step 3: Cross multiply
78,130,503.12x = 117,184,344.90 × 22,783,465.92 - Step 4: Simplify right side
78,130,503.12x = 2,669,865,528,386,676 - Step 5: Solve for x
x = 2,669,865,528,386,676/78,130,503.12 - Step 6: Final answer
x = 34,171,871.70
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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.