Finding the Fourth Proportional to 130,379,905.80, 195,596,102.70 and 38,263,465.80
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Solution
The fourth proportional to 130,379,905.80, 195,596,102.70 and 38,263,465.80 is: 57,402,900.70
Step by Step Solution
- Step 1: Write the proportion equation
130,379,905.80 : 195,596,102.70 = 38,263,465.80 : x - Step 2: Convert to fraction form
130,379,905.80/195,596,102.70 = 38,263,465.80/x - Step 3: Cross multiply
130,379,905.80x = 195,596,102.70 × 38,263,465.80 - Step 4: Simplify right side
130,379,905.80x = 7,484,184,786,274,737 - Step 5: Solve for x
x = 7,484,184,786,274,737/130,379,905.80 - Step 6: Final answer
x = 57,402,900.70
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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.