Finding the Fourth Proportional to 5,038,866,416.20, 7,558,299,624.30 and 2,589,986,288.20
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Solution
The fourth proportional to 5,038,866,416.20, 7,558,299,624.30 and 2,589,986,288.20 is: 3,884,979,432.30
Step by Step Solution
- Step 1: Write the proportion equation
5,038,866,416.20 : 7,558,299,624.30 = 2,589,986,288.20 : x - Step 2: Convert to fraction form
5,038,866,416.20/7,558,299,624.30 = 2,589,986,288.20/x - Step 3: Cross multiply
5,038,866,416.20x = 7,558,299,624.30 × 2,589,986,288.20 - Step 4: Simplify right side
5,038,866,416.20x = 19,575,892,389,044,211,712 - Step 5: Solve for x
x = 19,575,892,389,044,211,712/5,038,866,416.20 - Step 6: Final answer
x = 3,884,979,432.30
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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.