Finding the Fourth Proportional to 104,976,154.80, 157,464,232.20 and 66,806,881.20
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Solution
The fourth proportional to 104,976,154.80, 157,464,232.20 and 66,806,881.20 is: 100,210,321.80
Step by Step Solution
- Step 1: Write the proportion equation
104,976,154.80 : 157,464,232.20 = 66,806,881.20 : x - Step 2: Convert to fraction form
104,976,154.80/157,464,232.20 = 66,806,881.20/x - Step 3: Cross multiply
104,976,154.80x = 157,464,232.20 × 66,806,881.20 - Step 4: Simplify right side
104,976,154.80x = 10,519,694,253,834,614 - Step 5: Solve for x
x = 10,519,694,253,834,614/104,976,154.80 - Step 6: Final answer
x = 100,210,321.80
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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.