Finding the Fourth Proportional to 28,084,501.80, 42,126,752.70 and 7,889,743.80
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Solution
The fourth proportional to 28,084,501.80, 42,126,752.70 and 7,889,743.80 is: 11,834,615.70
Step by Step Solution
- Step 1: Write the proportion equation
28,084,501.80 : 42,126,752.70 = 7,889,743.80 : x - Step 2: Convert to fraction form
28,084,501.80/42,126,752.70 = 7,889,743.80/x - Step 3: Cross multiply
28,084,501.80x = 42,126,752.70 × 7,889,743.80 - Step 4: Simplify right side
28,084,501.80x = 332,369,285,928,958.25 - Step 5: Solve for x
x = 332,369,285,928,958.25/28,084,501.80 - Step 6: Final answer
x = 11,834,615.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.