Finding the Fourth Proportional to 13,315,389.84, 18,374,191.44 and 8,158,050.18
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Solution
The fourth proportional to 13,315,389.84, 18,374,191.44 and 8,158,050.18 is: 11,257,468.06
Step by Step Solution
- Step 1: Write the proportion equation
13,315,389.84 : 18,374,191.44 = 8,158,050.18 : x - Step 2: Convert to fraction form
13,315,389.84/18,374,191.44 = 8,158,050.18/x - Step 3: Cross multiply
13,315,389.84x = 18,374,191.44 × 8,158,050.18 - Step 4: Simplify right side
13,315,389.84x = 149,897,575,784,446.47 - Step 5: Solve for x
x = 149,897,575,784,446.47/13,315,389.84 - Step 6: Final answer
x = 11,257,468.06
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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.