Finding the Fourth Proportional to 245,722,286.70, 368,583,430.05 and 206,980,237.80
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Solution
The fourth proportional to 245,722,286.70, 368,583,430.05 and 206,980,237.80 is: 310,470,356.70
Step by Step Solution
- Step 1: Write the proportion equation
245,722,286.70 : 368,583,430.05 = 206,980,237.80 : x - Step 2: Convert to fraction form
245,722,286.70/368,583,430.05 = 206,980,237.80/x - Step 3: Cross multiply
245,722,286.70x = 368,583,430.05 × 206,980,237.80 - Step 4: Simplify right side
245,722,286.70x = 76,289,486,000,888,672 - Step 5: Solve for x
x = 76,289,486,000,888,672/245,722,286.70 - Step 6: Final answer
x = 310,470,356.70
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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.