Finding the Fourth Proportional to 5,386,903.92, 7,427,203.20 and 3,449,980.08
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Solution
The fourth proportional to 5,386,903.92, 7,427,203.20 and 3,449,980.08 is: 4,756,666.07
Step by Step Solution
- Step 1: Write the proportion equation
5,386,903.92 : 7,427,203.20 = 3,449,980.08 : x - Step 2: Convert to fraction form
5,386,903.92/7,427,203.20 = 3,449,980.08/x - Step 3: Cross multiply
5,386,903.92x = 7,427,203.20 × 3,449,980.08 - Step 4: Simplify right side
5,386,903.92x = 25,623,703,090,112.26 - Step 5: Solve for x
x = 25,623,703,090,112.26/5,386,903.92 - Step 6: Final answer
x = 4,756,666.07
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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.