Finding the Fourth Proportional to 804,588,813.90, 1,206,883,220.85 and 396,442,125.90
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Solution
The fourth proportional to 804,588,813.90, 1,206,883,220.85 and 396,442,125.90 is: 594,663,188.85
Step by Step Solution
- Step 1: Write the proportion equation
804,588,813.90 : 1,206,883,220.85 = 396,442,125.90 : x - Step 2: Convert to fraction form
804,588,813.90/1,206,883,220.85 = 396,442,125.90/x - Step 3: Cross multiply
804,588,813.90x = 1,206,883,220.85 × 396,442,125.90 - Step 4: Simplify right side
804,588,813.90x = 478,459,349,786,813,120 - Step 5: Solve for x
x = 478,459,349,786,813,120/804,588,813.90 - Step 6: Final answer
x = 594,663,188.85
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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.