Finding the Fourth Proportional to 823,685,998.05, 1,136,756,778.17 and 466,517,308.05
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Solution
The fourth proportional to 823,685,998.05, 1,136,756,778.17 and 466,517,308.05 is: 643,833,588.66
Step by Step Solution
- Step 1: Write the proportion equation
823,685,998.05 : 1,136,756,778.17 = 466,517,308.05 : x - Step 2: Convert to fraction form
823,685,998.05/1,136,756,778.17 = 466,517,308.05/x - Step 3: Cross multiply
823,685,998.05x = 1,136,756,778.17 × 466,517,308.05 - Step 4: Simplify right side
823,685,998.05x = 530,316,712,057,126,784 - Step 5: Solve for x
x = 530,316,712,057,126,784/823,685,998.05 - Step 6: Final answer
x = 643,833,588.66
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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.