Finding the Fourth Proportional to 13,121,204.20, 19,681,806.30 and 4,598,465.20
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Solution
The fourth proportional to 13,121,204.20, 19,681,806.30 and 4,598,465.20 is: 6,897,697.80
Step by Step Solution
- Step 1: Write the proportion equation
13,121,204.20 : 19,681,806.30 = 4,598,465.20 : x - Step 2: Convert to fraction form
13,121,204.20/19,681,806.30 = 4,598,465.20/x - Step 3: Cross multiply
13,121,204.20x = 19,681,806.30 × 4,598,465.20 - Step 4: Simplify right side
13,121,204.20x = 90,506,101,343,690.77 - Step 5: Solve for x
x = 90,506,101,343,690.77/13,121,204.20 - Step 6: Final answer
x = 6,897,697.80
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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.