Finding the Fourth Proportional to 528,084,109.30, 792,126,163.95 and 480,466,995.70
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Solution
The fourth proportional to 528,084,109.30, 792,126,163.95 and 480,466,995.70 is: 720,700,493.55
Step by Step Solution
- Step 1: Write the proportion equation
528,084,109.30 : 792,126,163.95 = 480,466,995.70 : x - Step 2: Convert to fraction form
528,084,109.30/792,126,163.95 = 480,466,995.70/x - Step 3: Cross multiply
528,084,109.30x = 792,126,163.95 × 480,466,995.70 - Step 4: Simplify right side
528,084,109.30x = 380,590,478,208,422,144 - Step 5: Solve for x
x = 380,590,478,208,422,144/528,084,109.30 - Step 6: Final answer
x = 720,700,493.55
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Similar ratio
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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.