Finding the Fourth Proportional to 724,267,208.70, 1,086,400,813.05 and 264,220,386.30
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Solution
The fourth proportional to 724,267,208.70, 1,086,400,813.05 and 264,220,386.30 is: 396,330,579.45
Step by Step Solution
- Step 1: Write the proportion equation
724,267,208.70 : 1,086,400,813.05 = 264,220,386.30 : x - Step 2: Convert to fraction form
724,267,208.70/1,086,400,813.05 = 264,220,386.30/x - Step 3: Cross multiply
724,267,208.70x = 1,086,400,813.05 × 264,220,386.30 - Step 4: Simplify right side
724,267,208.70x = 287,049,242,500,705,088 - Step 5: Solve for x
x = 287,049,242,500,705,088/724,267,208.70 - Step 6: Final answer
x = 396,330,579.45
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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.