Finding the Fourth Proportional to 5,228,579.16, 7,215,295.14 and 2,905,411.68
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Solution
The fourth proportional to 5,228,579.16, 7,215,295.14 and 2,905,411.68 is: 4,009,388.04
Step by Step Solution
- Step 1: Write the proportion equation
5,228,579.16 : 7,215,295.14 = 2,905,411.68 : x - Step 2: Convert to fraction form
5,228,579.16/7,215,295.14 = 2,905,411.68/x - Step 3: Cross multiply
5,228,579.16x = 7,215,295.14 × 2,905,411.68 - Step 4: Simplify right side
5,228,579.16x = 20,963,402,774,403.23 - Step 5: Solve for x
x = 20,963,402,774,403.23/5,228,579.16 - Step 6: Final answer
x = 4,009,388.04
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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.