Finding the Fourth Proportional to 130,379,909.80, 195,596,108.70 and 38,263,469.80
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Solution
The fourth proportional to 130,379,909.80, 195,596,108.70 and 38,263,469.80 is: 57,402,906.70
Step by Step Solution
- Step 1: Write the proportion equation
130,379,909.80 : 195,596,108.70 = 38,263,469.80 : x - Step 2: Convert to fraction form
130,379,909.80/195,596,108.70 = 38,263,469.80/x - Step 3: Cross multiply
130,379,909.80x = 195,596,108.70 × 38,263,469.80 - Step 4: Simplify right side
130,379,909.80x = 7,484,185,798,239,966 - Step 5: Solve for x
x = 7,484,185,798,239,966/130,379,909.80 - Step 6: Final answer
x = 57,402,906.70
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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.