Finding the Fourth Proportional to 943,488,014.70, 1,415,232,022.05 and 667,989,000.30
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Solution
The fourth proportional to 943,488,014.70, 1,415,232,022.05 and 667,989,000.30 is: 1,001,983,500.45
Step by Step Solution
- Step 1: Write the proportion equation
943,488,014.70 : 1,415,232,022.05 = 667,989,000.30 : x - Step 2: Convert to fraction form
943,488,014.70/1,415,232,022.05 = 667,989,000.30/x - Step 3: Cross multiply
943,488,014.70x = 1,415,232,022.05 × 667,989,000.30 - Step 4: Simplify right side
943,488,014.70x = 945,359,423,601,726,976 - Step 5: Solve for x
x = 945,359,423,601,726,976/943,488,014.70 - Step 6: Final answer
x = 1,001,983,500.45
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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.