Finding the Fourth Proportional to 847,128,521.23, 1,168,674,729.04 and 529,036,532.13
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Solution
The fourth proportional to 847,128,521.23, 1,168,674,729.04 and 529,036,532.13 is: 729,843,949.70
Step by Step Solution
- Step 1: Write the proportion equation
847,128,521.23 : 1,168,674,729.04 = 529,036,532.13 : x - Step 2: Convert to fraction form
847,128,521.23/1,168,674,729.04 = 529,036,532.13/x - Step 3: Cross multiply
847,128,521.23x = 1,168,674,729.04 × 529,036,532.13 - Step 4: Simplify right side
847,128,521.23x = 618,271,625,839,288,960 - Step 5: Solve for x
x = 618,271,625,839,288,960/847,128,521.23 - Step 6: Final answer
x = 729,843,949.70
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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.