Finding the Fourth Proportional to 124,476,997.20, 186,715,495.80 and 88,126,432.80
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Solution
The fourth proportional to 124,476,997.20, 186,715,495.80 and 88,126,432.80 is: 132,189,649.20
Step by Step Solution
- Step 1: Write the proportion equation
124,476,997.20 : 186,715,495.80 = 88,126,432.80 : x - Step 2: Convert to fraction form
124,476,997.20/186,715,495.80 = 88,126,432.80/x - Step 3: Cross multiply
124,476,997.20x = 186,715,495.80 × 88,126,432.80 - Step 4: Simplify right side
124,476,997.20x = 16,454,570,593,337,382 - Step 5: Solve for x
x = 16,454,570,593,337,382/124,476,997.20 - Step 6: Final answer
x = 132,189,649.20
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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.