Finding the Fourth Proportional to 140,920,396.80, 211,128,652.80 and 120,765,004.80
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Solution
The fourth proportional to 140,920,396.80, 211,128,652.80 and 120,765,004.80 is: 180,931,599.31
Step by Step Solution
- Step 1: Write the proportion equation
140,920,396.80 : 211,128,652.80 = 120,765,004.80 : x - Step 2: Convert to fraction form
140,920,396.80/211,128,652.80 = 120,765,004.80/x - Step 3: Cross multiply
140,920,396.80x = 211,128,652.80 × 120,765,004.80 - Step 4: Simplify right side
140,920,396.80x = 25,496,952,768,809,536 - Step 5: Solve for x
x = 25,496,952,768,809,536/140,920,396.80 - Step 6: Final answer
x = 180,931,599.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.