Finding the Fourth Proportional to 889,758,108.80, 1,334,637,163.20 and 755,388,828.80
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Solution
The fourth proportional to 889,758,108.80, 1,334,637,163.20 and 755,388,828.80 is: 1,133,083,243.20
Step by Step Solution
- Step 1: Write the proportion equation
889,758,108.80 : 1,334,637,163.20 = 755,388,828.80 : x - Step 2: Convert to fraction form
889,758,108.80/1,334,637,163.20 = 755,388,828.80/x - Step 3: Cross multiply
889,758,108.80x = 1,334,637,163.20 × 755,388,828.80 - Step 4: Simplify right side
889,758,108.80x = 1,008,170,003,582,602,496 - Step 5: Solve for x
x = 1,008,170,003,582,602,496/889,758,108.80 - Step 6: Final answer
x = 1,133,083,243.20
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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.