Finding the Fourth Proportional to 282,794,793.90, 390,250,698.81 and 163,722,407.49
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Solution
The fourth proportional to 282,794,793.90, 390,250,698.81 and 163,722,407.49 is: 225,933,381.07
Step by Step Solution
- Step 1: Write the proportion equation
282,794,793.90 : 390,250,698.81 = 163,722,407.49 : x - Step 2: Convert to fraction form
282,794,793.90/390,250,698.81 = 163,722,407.49/x - Step 3: Cross multiply
282,794,793.90x = 390,250,698.81 × 163,722,407.49 - Step 4: Simplify right side
282,794,793.90x = 63,892,783,933,828,080 - Step 5: Solve for x
x = 63,892,783,933,828,080/282,794,793.90 - Step 6: Final answer
x = 225,933,381.07
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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.