Finding the Fourth Proportional to 1,190,563,814.02, 1,785,730,259.70 and 361,524,637.60
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Solution
The fourth proportional to 1,190,563,814.02, 1,785,730,259.70 and 361,524,637.60 is: 542,251,895.60
Step by Step Solution
- Step 1: Write the proportion equation
1,190,563,814.02 : 1,785,730,259.70 = 361,524,637.60 : x - Step 2: Convert to fraction form
1,190,563,814.02/1,785,730,259.70 = 361,524,637.60/x - Step 3: Cross multiply
1,190,563,814.02x = 1,785,730,259.70 × 361,524,637.60 - Step 4: Simplify right side
1,190,563,814.02x = 645,585,484,989,396,480 - Step 5: Solve for x
x = 645,585,484,989,396,480/1,190,563,814.02 - Step 6: Final answer
x = 542,251,895.60
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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.