Finding the Fourth Proportional to 687,203,035.59, 948,332,217.50 and 373,931,852.12
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Solution
The fourth proportional to 687,203,035.59, 948,332,217.50 and 373,931,852.12 is: 516,021,618.28
Step by Step Solution
- Step 1: Write the proportion equation
687,203,035.59 : 948,332,217.50 = 373,931,852.12 : x - Step 2: Convert to fraction form
687,203,035.59/948,332,217.50 = 373,931,852.12/x - Step 3: Cross multiply
687,203,035.59x = 948,332,217.50 × 373,931,852.12 - Step 4: Simplify right side
687,203,035.59x = 354,611,622,515,299,584 - Step 5: Solve for x
x = 354,611,622,515,299,584/687,203,035.59 - Step 6: Final answer
x = 516,021,618.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.