Finding the Fourth Proportional to 121,064,665.80, 181,596,998.70 and 104,058,553.80
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Solution
The fourth proportional to 121,064,665.80, 181,596,998.70 and 104,058,553.80 is: 156,087,830.70
Step by Step Solution
- Step 1: Write the proportion equation
121,064,665.80 : 181,596,998.70 = 104,058,553.80 : x - Step 2: Convert to fraction form
121,064,665.80/181,596,998.70 = 104,058,553.80/x - Step 3: Cross multiply
121,064,665.80x = 181,596,998.70 × 104,058,553.80 - Step 4: Simplify right side
121,064,665.80x = 18,896,721,059,142,480 - Step 5: Solve for x
x = 18,896,721,059,142,480/121,064,665.80 - Step 6: Final answer
x = 156,087,830.70
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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.