Finding the Fourth Proportional to 695,714,658.80, 1,043,571,988.20 and 286,560,201.20
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Solution
The fourth proportional to 695,714,658.80, 1,043,571,988.20 and 286,560,201.20 is: 429,840,301.80
Step by Step Solution
- Step 1: Write the proportion equation
695,714,658.80 : 1,043,571,988.20 = 286,560,201.20 : x - Step 2: Convert to fraction form
695,714,658.80/1,043,571,988.20 = 286,560,201.20/x - Step 3: Cross multiply
695,714,658.80x = 1,043,571,988.20 × 286,560,201.20 - Step 4: Simplify right side
695,714,658.80x = 299,046,198,905,276,032 - Step 5: Solve for x
x = 299,046,198,905,276,032/695,714,658.80 - Step 6: Final answer
x = 429,840,301.80
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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.