Finding the Fourth Proportional to 130,331,570.40, 195,497,355.60 and 39,459,679.20
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Solution
The fourth proportional to 130,331,570.40, 195,497,355.60 and 39,459,679.20 is: 59,189,518.80
Step by Step Solution
- Step 1: Write the proportion equation
130,331,570.40 : 195,497,355.60 = 39,459,679.20 : x - Step 2: Convert to fraction form
130,331,570.40/195,497,355.60 = 39,459,679.20/x - Step 3: Cross multiply
130,331,570.40x = 195,497,355.60 × 39,459,679.20 - Step 4: Simplify right side
130,331,570.40x = 7,714,262,936,424,324 - Step 5: Solve for x
x = 7,714,262,936,424,324/130,331,570.40 - Step 6: Final answer
x = 59,189,518.80
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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.