Finding the Fourth Proportional to 128,334,212.70, 192,416,301.45 and 70,854,020.70
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Solution
The fourth proportional to 128,334,212.70, 192,416,301.45 and 70,854,020.70 is: 106,234,092.37
Step by Step Solution
- Step 1: Write the proportion equation
128,334,212.70 : 192,416,301.45 = 70,854,020.70 : x - Step 2: Convert to fraction form
128,334,212.70/192,416,301.45 = 70,854,020.70/x - Step 3: Cross multiply
128,334,212.70x = 192,416,301.45 × 70,854,020.70 - Step 4: Simplify right side
128,334,212.70x = 13,633,468,605,955,740 - Step 5: Solve for x
x = 13,633,468,605,955,740/128,334,212.70 - Step 6: Final answer
x = 106,234,092.37
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1.5x scale
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.