Finding the Fourth Proportional to 5,448,330.78, 7,518,696.12 and 3,157,820.08
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Solution
The fourth proportional to 5,448,330.78, 7,518,696.12 and 3,157,820.08 is: 4,357,791.50
Step by Step Solution
- Step 1: Write the proportion equation
5,448,330.78 : 7,518,696.12 = 3,157,820.08 : x - Step 2: Convert to fraction form
5,448,330.78/7,518,696.12 = 3,157,820.08/x - Step 3: Cross multiply
5,448,330.78x = 7,518,696.12 × 3,157,820.08 - Step 4: Simplify right side
5,448,330.78x = 23,742,689,583,154.09 - Step 5: Solve for x
x = 23,742,689,583,154.09/5,448,330.78 - Step 6: Final answer
x = 4,357,791.50
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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.