Finding the Fourth Proportional to 30,257,430.63, 41,749,543.58 and 18,035,424.87
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Solution
The fourth proportional to 30,257,430.63, 41,749,543.58 and 18,035,424.87 is: 24,885,482.37
Step by Step Solution
- Step 1: Write the proportion equation
30,257,430.63 : 41,749,543.58 = 18,035,424.87 : x - Step 2: Convert to fraction form
30,257,430.63/41,749,543.58 = 18,035,424.87/x - Step 3: Cross multiply
30,257,430.63x = 41,749,543.58 × 18,035,424.87 - Step 4: Simplify right side
30,257,430.63x = 752,970,756,503,703.75 - Step 5: Solve for x
x = 752,970,756,503,703.75/30,257,430.63 - Step 6: Final answer
x = 24,885,482.37
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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.