Finding the Fourth Proportional to 7,762,515.64, 10,705,005.47 and 6,134,811.53
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Solution
The fourth proportional to 7,762,515.64, 10,705,005.47 and 6,134,811.53 is: 8,460,297.41
Step by Step Solution
- Step 1: Write the proportion equation
7,762,515.64 : 10,705,005.47 = 6,134,811.53 : x - Step 2: Convert to fraction form
7,762,515.64/10,705,005.47 = 6,134,811.53/x - Step 3: Cross multiply
7,762,515.64x = 10,705,005.47 × 6,134,811.53 - Step 4: Simplify right side
7,762,515.64x = 65,673,190,932,544.05 - Step 5: Solve for x
x = 65,673,190,932,544.05/7,762,515.64 - Step 6: Final answer
x = 8,460,297.41
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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.