Finding the Fourth Proportional to 139,968,010.68, 209,952,016.01 and 103,688,305.08
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Solution
The fourth proportional to 139,968,010.68, 209,952,016.01 and 103,688,305.08 is: 155,532,457.61
Step by Step Solution
- Step 1: Write the proportion equation
139,968,010.68 : 209,952,016.01 = 103,688,305.08 : x - Step 2: Convert to fraction form
139,968,010.68/209,952,016.01 = 103,688,305.08/x - Step 3: Cross multiply
139,968,010.68x = 209,952,016.01 × 103,688,305.08 - Step 4: Simplify right side
139,968,010.68x = 21,769,568,688,205,924 - Step 5: Solve for x
x = 21,769,568,688,205,924/139,968,010.68 - Step 6: Final answer
x = 155,532,457.61
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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.