Finding the Fourth Proportional to 674,752,502.40, 1,012,128,753.60 and 538,703,606.40
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Solution
The fourth proportional to 674,752,502.40, 1,012,128,753.60 and 538,703,606.40 is: 808,055,409.60
Step by Step Solution
- Step 1: Write the proportion equation
674,752,502.40 : 1,012,128,753.60 = 538,703,606.40 : x - Step 2: Convert to fraction form
674,752,502.40/1,012,128,753.60 = 538,703,606.40/x - Step 3: Cross multiply
674,752,502.40x = 1,012,128,753.60 × 538,703,606.40 - Step 4: Simplify right side
674,752,502.40x = 545,237,409,705,456,960 - Step 5: Solve for x
x = 545,237,409,705,456,960/674,752,502.40 - Step 6: Final answer
x = 808,055,409.60
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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.