Finding the Fourth Proportional to 1,579,456,542.56, 2,179,623,229.08 and 874,593,390.32
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Solution
The fourth proportional to 1,579,456,542.56, 2,179,623,229.08 and 874,593,390.32 is: 1,206,924,038.85
Step by Step Solution
- Step 1: Write the proportion equation
1,579,456,542.56 : 2,179,623,229.08 = 874,593,390.32 : x - Step 2: Convert to fraction form
1,579,456,542.56/2,179,623,229.08 = 874,593,390.32/x - Step 3: Cross multiply
1,579,456,542.56x = 2,179,623,229.08 × 874,593,390.32 - Step 4: Simplify right side
1,579,456,542.56x = 1,906,284,069,541,303,296 - Step 5: Solve for x
x = 1,906,284,069,541,303,296/1,579,456,542.56 - Step 6: Final answer
x = 1,206,924,038.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.