Finding the Fourth Proportional to 5,448,330.78, 7,518,696.12 and 3,157,820.07
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Solution
The fourth proportional to 5,448,330.78, 7,518,696.12 and 3,157,820.07 is: 4,357,791.49
Step by Step Solution
- Step 1: Write the proportion equation
5,448,330.78 : 7,518,696.12 = 3,157,820.07 : x - Step 2: Convert to fraction form
5,448,330.78/7,518,696.12 = 3,157,820.07/x - Step 3: Cross multiply
5,448,330.78x = 7,518,696.12 × 3,157,820.07 - Step 4: Simplify right side
5,448,330.78x = 23,742,689,507,967.13 - Step 5: Solve for x
x = 23,742,689,507,967.13/5,448,330.78 - Step 6: Final answer
x = 4,357,791.49
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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.