Finding the Fourth Proportional to 10,500,237.20, 15,750,355.80 and 7,630,455.80
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Solution
The fourth proportional to 10,500,237.20, 15,750,355.80 and 7,630,455.80 is: 11,445,683.70
Step by Step Solution
- Step 1: Write the proportion equation
10,500,237.20 : 15,750,355.80 = 7,630,455.80 : x - Step 2: Convert to fraction form
10,500,237.20/15,750,355.80 = 7,630,455.80/x - Step 3: Cross multiply
10,500,237.20x = 15,750,355.80 × 7,630,455.80 - Step 4: Simplify right side
10,500,237.20x = 120,182,393,766,173.64 - Step 5: Solve for x
x = 120,182,393,766,173.64/10,500,237.20 - Step 6: Final answer
x = 11,445,683.70
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1.5x scale
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.