Finding the Fourth Proportional to 823,685,989.05, 1,136,756,765.75 and 466,517,299.05
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Solution
The fourth proportional to 823,685,989.05, 1,136,756,765.75 and 466,517,299.05 is: 643,833,576.24
Step by Step Solution
- Step 1: Write the proportion equation
823,685,989.05 : 1,136,756,765.75 = 466,517,299.05 : x - Step 2: Convert to fraction form
823,685,989.05/1,136,756,765.75 = 466,517,299.05/x - Step 3: Cross multiply
823,685,989.05x = 1,136,756,765.75 × 466,517,299.05 - Step 4: Simplify right side
823,685,989.05x = 530,316,696,032,170,944 - Step 5: Solve for x
x = 530,316,696,032,170,944/823,685,989.05 - Step 6: Final answer
x = 643,833,576.24
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.