Finding the Fourth Proportional to 512,465,201.80, 768,623,153.10 and 148,921,649.80
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Solution
The fourth proportional to 512,465,201.80, 768,623,153.10 and 148,921,649.80 is: 223,360,781.63
Step by Step Solution
- Step 1: Write the proportion equation
512,465,201.80 : 768,623,153.10 = 148,921,649.80 : x - Step 2: Convert to fraction form
512,465,201.80/768,623,153.10 = 148,921,649.80/x - Step 3: Cross multiply
512,465,201.80x = 768,623,153.10 × 148,921,649.80 - Step 4: Simplify right side
512,465,201.80x = 114,464,628,034,130,000 - Step 5: Solve for x
x = 114,464,628,034,130,000/512,465,201.80 - Step 6: Final answer
x = 223,360,781.63
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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.