Finding the Fourth Proportional to 1,329,696,542.70, 1,994,544,814.05 and 360,348,158.70
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Solution
The fourth proportional to 1,329,696,542.70, 1,994,544,814.05 and 360,348,158.70 is: 540,522,238.05
Step by Step Solution
- Step 1: Write the proportion equation
1,329,696,542.70 : 1,994,544,814.05 = 360,348,158.70 : x - Step 2: Convert to fraction form
1,329,696,542.70/1,994,544,814.05 = 360,348,158.70/x - Step 3: Cross multiply
1,329,696,542.70x = 1,994,544,814.05 × 360,348,158.70 - Step 4: Simplify right side
1,329,696,542.70x = 718,730,551,187,551,360 - Step 5: Solve for x
x = 718,730,551,187,551,360/1,329,696,542.70 - Step 6: Final answer
x = 540,522,238.05
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Double scale
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Similar ratio
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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.