Finding the Fourth Proportional to 143,449,515.91, 215,173,551.60 and 56,019,911.09
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Solution
The fourth proportional to 143,449,515.91, 215,173,551.60 and 56,019,911.09 is: 84,029,584.57
Step by Step Solution
- Step 1: Write the proportion equation
143,449,515.91 : 215,173,551.60 = 56,019,911.09 : x - Step 2: Convert to fraction form
143,449,515.91/215,173,551.60 = 56,019,911.09/x - Step 3: Cross multiply
143,449,515.91x = 215,173,551.60 × 56,019,911.09 - Step 4: Simplify right side
143,449,515.91x = 12,054,003,228,580,978 - Step 5: Solve for x
x = 12,054,003,228,580,978/143,449,515.91 - Step 6: Final answer
x = 84,029,584.57
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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.