Finding the Fourth Proportional to 746,495,998.40, 1,119,743,997.60 and 667,889,969.60
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Solution
The fourth proportional to 746,495,998.40, 1,119,743,997.60 and 667,889,969.60 is: 1,001,834,954.40
Step by Step Solution
- Step 1: Write the proportion equation
746,495,998.40 : 1,119,743,997.60 = 667,889,969.60 : x - Step 2: Convert to fraction form
746,495,998.40/1,119,743,997.60 = 667,889,969.60/x - Step 3: Cross multiply
746,495,998.40x = 1,119,743,997.60 × 667,889,969.60 - Step 4: Simplify right side
746,495,998.40x = 747,865,784,516,846,464 - Step 5: Solve for x
x = 747,865,784,516,846,464/746,495,998.40 - Step 6: Final answer
x = 1,001,834,954.40
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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.