Finding the Fourth Proportional to 756,684,367.80, 1,135,026,551.70 and 211,425,901.80
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Solution
The fourth proportional to 756,684,367.80, 1,135,026,551.70 and 211,425,901.80 is: 317,138,852.70
Step by Step Solution
- Step 1: Write the proportion equation
756,684,367.80 : 1,135,026,551.70 = 211,425,901.80 : x - Step 2: Convert to fraction form
756,684,367.80/1,135,026,551.70 = 211,425,901.80/x - Step 3: Cross multiply
756,684,367.80x = 1,135,026,551.70 × 211,425,901.80 - Step 4: Simplify right side
756,684,367.80x = 239,974,012,260,116,832 - Step 5: Solve for x
x = 239,974,012,260,116,832/756,684,367.80 - Step 6: Final answer
x = 317,138,852.70
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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.