Finding the Fourth Proportional to 1,813,968,139.20, 2,720,952,208.80 and 587,260,593.60
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Solution
The fourth proportional to 1,813,968,139.20, 2,720,952,208.80 and 587,260,593.60 is: 880,890,890.40
Step by Step Solution
- Step 1: Write the proportion equation
1,813,968,139.20 : 2,720,952,208.80 = 587,260,593.60 : x - Step 2: Convert to fraction form
1,813,968,139.20/2,720,952,208.80 = 587,260,593.60/x - Step 3: Cross multiply
1,813,968,139.20x = 2,720,952,208.80 × 587,260,593.60 - Step 4: Simplify right side
1,813,968,139.20x = 1,597,908,009,297,119,232 - Step 5: Solve for x
x = 1,597,908,009,297,119,232/1,813,968,139.20 - Step 6: Final answer
x = 880,890,890.40
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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.