Finding the Fourth Proportional to 823,053,876.32, 1,239,507,770.36 and 749,587,472.48
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Solution
The fourth proportional to 823,053,876.32, 1,239,507,770.36 and 749,587,472.48 is: 1,128,868,380.84
Step by Step Solution
- Step 1: Write the proportion equation
823,053,876.32 : 1,239,507,770.36 = 749,587,472.48 : x - Step 2: Convert to fraction form
823,053,876.32/1,239,507,770.36 = 749,587,472.48/x - Step 3: Cross multiply
823,053,876.32x = 1,239,507,770.36 × 749,587,472.48 - Step 4: Simplify right side
823,053,876.32x = 929,119,496,703,472,640 - Step 5: Solve for x
x = 929,119,496,703,472,640/823,053,876.32 - Step 6: Final answer
x = 1,128,868,380.84
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.