Finding the Fourth Proportional to 75,249,486.66, 112,862,148.03 and 20,649,320.94
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Solution
The fourth proportional to 75,249,486.66, 112,862,148.03 and 20,649,320.94 is: 30,970,665.98
Step by Step Solution
- Step 1: Write the proportion equation
75,249,486.66 : 112,862,148.03 = 20,649,320.94 : x - Step 2: Convert to fraction form
75,249,486.66/112,862,148.03 = 20,649,320.94/x - Step 3: Cross multiply
75,249,486.66x = 112,862,148.03 × 20,649,320.94 - Step 4: Simplify right side
75,249,486.66x = 2,330,526,716,649,259 - Step 5: Solve for x
x = 2,330,526,716,649,259/75,249,486.66 - Step 6: Final answer
x = 30,970,665.98
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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.