Finding the Fourth Proportional to 5,486,688.16, 8,242,681.20 and 5,259,943.84
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Solution
The fourth proportional to 5,486,688.16, 8,242,681.20 and 5,259,943.84 is: 7,902,041.99
Step by Step Solution
- Step 1: Write the proportion equation
5,486,688.16 : 8,242,681.20 = 5,259,943.84 : x - Step 2: Convert to fraction form
5,486,688.16/8,242,681.20 = 5,259,943.84/x - Step 3: Cross multiply
5,486,688.16x = 8,242,681.20 × 5,259,943.84 - Step 4: Simplify right side
5,486,688.16x = 43,356,040,203,023.80 - Step 5: Solve for x
x = 43,356,040,203,023.80/5,486,688.16 - Step 6: Final answer
x = 7,902,041.99
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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.