Finding the Fourth Proportional to 758,388,574.97, 1,137,582,862.45 and 213,130,108.97
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Solution
The fourth proportional to 758,388,574.97, 1,137,582,862.45 and 213,130,108.97 is: 319,695,163.45
Step by Step Solution
- Step 1: Write the proportion equation
758,388,574.97 : 1,137,582,862.45 = 213,130,108.97 : x - Step 2: Convert to fraction form
758,388,574.97/1,137,582,862.45 = 213,130,108.97/x - Step 3: Cross multiply
758,388,574.97x = 1,137,582,862.45 × 213,130,108.97 - Step 4: Simplify right side
758,388,574.97x = 242,453,159,434,061,920 - Step 5: Solve for x
x = 242,453,159,434,061,920/758,388,574.97 - Step 6: Final answer
x = 319,695,163.45
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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.