Finding the Fourth Proportional to 839,810,341.30, 1,259,715,511.95 and 741,174,891.70
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Solution
The fourth proportional to 839,810,341.30, 1,259,715,511.95 and 741,174,891.70 is: 1,111,762,337.55
Step by Step Solution
- Step 1: Write the proportion equation
839,810,341.30 : 1,259,715,511.95 = 741,174,891.70 : x - Step 2: Convert to fraction form
839,810,341.30/1,259,715,511.95 = 741,174,891.70/x - Step 3: Cross multiply
839,810,341.30x = 1,259,715,511.95 × 741,174,891.70 - Step 4: Simplify right side
839,810,341.30x = 933,669,508,142,351,360 - Step 5: Solve for x
x = 933,669,508,142,351,360/839,810,341.30 - Step 6: Final answer
x = 1,111,762,337.55
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Double scale
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Similar ratio
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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.