Finding the Fourth Proportional to 99,670,373.80, 149,505,560.70 and 79,514,981.80
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Solution
The fourth proportional to 99,670,373.80, 149,505,560.70 and 79,514,981.80 is: 119,272,472.70
Step by Step Solution
- Step 1: Write the proportion equation
99,670,373.80 : 149,505,560.70 = 79,514,981.80 : x - Step 2: Convert to fraction form
99,670,373.80/149,505,560.70 = 79,514,981.80/x - Step 3: Cross multiply
99,670,373.80x = 149,505,560.70 × 79,514,981.80 - Step 4: Simplify right side
99,670,373.80x = 11,887,931,938,059,294 - Step 5: Solve for x
x = 11,887,931,938,059,294/99,670,373.80 - Step 6: Final answer
x = 119,272,472.70
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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.