Finding the Fourth Proportional to 512,453,287.80, 768,679,931.70 and 236,103,967.80
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Solution
The fourth proportional to 512,453,287.80, 768,679,931.70 and 236,103,967.80 is: 354,155,951.70
Step by Step Solution
- Step 1: Write the proportion equation
512,453,287.80 : 768,679,931.70 = 236,103,967.80 : x - Step 2: Convert to fraction form
512,453,287.80/768,679,931.70 = 236,103,967.80/x - Step 3: Cross multiply
512,453,287.80x = 768,679,931.70 × 236,103,967.80 - Step 4: Simplify right side
512,453,287.80x = 181,488,381,842,603,008 - Step 5: Solve for x
x = 181,488,381,842,603,008/512,453,287.80 - Step 6: Final answer
x = 354,155,951.70
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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.