Finding the Fourth Proportional to 774,173,640.80, 1,161,260,461.20 and 695,343,663.20
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Solution
The fourth proportional to 774,173,640.80, 1,161,260,461.20 and 695,343,663.20 is: 1,043,015,494.80
Step by Step Solution
- Step 1: Write the proportion equation
774,173,640.80 : 1,161,260,461.20 = 695,343,663.20 : x - Step 2: Convert to fraction form
774,173,640.80/1,161,260,461.20 = 695,343,663.20/x - Step 3: Cross multiply
774,173,640.80x = 1,161,260,461.20 × 695,343,663.20 - Step 4: Simplify right side
774,173,640.80x = 807,475,103,020,129,536 - Step 5: Solve for x
x = 807,475,103,020,129,536/774,173,640.80 - Step 6: Final answer
x = 1,043,015,494.80
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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.