Finding the Fourth Proportional to 11,766,057.40, 17,630,423.70 and 7,772,303.80
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Solution
The fourth proportional to 11,766,057.40, 17,630,423.70 and 7,772,303.80 is: 11,646,127.88
Step by Step Solution
- Step 1: Write the proportion equation
11,766,057.40 : 17,630,423.70 = 7,772,303.80 : x - Step 2: Convert to fraction form
11,766,057.40/17,630,423.70 = 7,772,303.80/x - Step 3: Cross multiply
11,766,057.40x = 17,630,423.70 × 7,772,303.80 - Step 4: Simplify right side
11,766,057.40x = 137,029,009,119,120.05 - Step 5: Solve for x
x = 137,029,009,119,120.05/11,766,057.40 - Step 6: Final answer
x = 11,646,127.88
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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.