Finding the Fourth Proportional to 195,611,485.80, 293,417,228.70 and 138,215,857.80
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Solution
The fourth proportional to 195,611,485.80, 293,417,228.70 and 138,215,857.80 is: 207,323,786.70
Step by Step Solution
- Step 1: Write the proportion equation
195,611,485.80 : 293,417,228.70 = 138,215,857.80 : x - Step 2: Convert to fraction form
195,611,485.80/293,417,228.70 = 138,215,857.80/x - Step 3: Cross multiply
195,611,485.80x = 293,417,228.70 × 138,215,857.80 - Step 4: Simplify right side
195,611,485.80x = 40,554,913,958,069,280 - Step 5: Solve for x
x = 40,554,913,958,069,280/195,611,485.80 - Step 6: Final answer
x = 207,323,786.70
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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.