Finding the Fourth Proportional to 100,642,203.70, 150,963,305.55 and 100,642,203.70
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Solution
The fourth proportional to 100,642,203.70, 150,963,305.55 and 100,642,203.70 is: 150,963,305.55
Step by Step Solution
- Step 1: Write the proportion equation
100,642,203.70 : 150,963,305.55 = 100,642,203.70 : x - Step 2: Convert to fraction form
100,642,203.70/150,963,305.55 = 100,642,203.70/x - Step 3: Cross multiply
100,642,203.70x = 150,963,305.55 × 100,642,203.70 - Step 4: Simplify right side
100,642,203.70x = 15,193,279,748,388,442 - Step 5: Solve for x
x = 15,193,279,748,388,442/100,642,203.70 - Step 6: Final answer
x = 150,963,305.55
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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.