Finding the Fourth Proportional to 5,353,354.28, 7,387,638.27 and 2,905,966.98
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Solution
The fourth proportional to 5,353,354.28, 7,387,638.27 and 2,905,966.98 is: 4,010,239.52
Step by Step Solution
- Step 1: Write the proportion equation
5,353,354.28 : 7,387,638.27 = 2,905,966.98 : x - Step 2: Convert to fraction form
5,353,354.28/7,387,638.27 = 2,905,966.98/x - Step 3: Cross multiply
5,353,354.28x = 7,387,638.27 × 2,905,966.98 - Step 4: Simplify right side
5,353,354.28x = 21,468,232,888,831.93 - Step 5: Solve for x
x = 21,468,232,888,831.93/5,353,354.28 - Step 6: Final answer
x = 4,010,239.52
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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.