Finding the Fourth Proportional to 2,989,550,564.70, 4,484,325,847.05 and 2,839,896,779.10
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Solution
The fourth proportional to 2,989,550,564.70, 4,484,325,847.05 and 2,839,896,779.10 is: 4,259,845,168.65
Step by Step Solution
- Step 1: Write the proportion equation
2,989,550,564.70 : 4,484,325,847.05 = 2,839,896,779.10 : x - Step 2: Convert to fraction form
2,989,550,564.70/4,484,325,847.05 = 2,839,896,779.10/x - Step 3: Cross multiply
2,989,550,564.70x = 4,484,325,847.05 × 2,839,896,779.10 - Step 4: Simplify right side
2,989,550,564.70x = 12,735,022,529,472,174,080 - Step 5: Solve for x
x = 12,735,022,529,472,174,080/2,989,550,564.70 - Step 6: Final answer
x = 4,259,845,168.65
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Double scale
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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.