Finding the Fourth Proportional to 142,991,420.80, 214,319,169.60 and 66,152,138.08
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Solution
The fourth proportional to 142,991,420.80, 214,319,169.60 and 66,152,138.08 is: 99,150,503.02
Step by Step Solution
- Step 1: Write the proportion equation
142,991,420.80 : 214,319,169.60 = 66,152,138.08 : x - Step 2: Convert to fraction form
142,991,420.80/214,319,169.60 = 66,152,138.08/x - Step 3: Cross multiply
142,991,420.80x = 214,319,169.60 × 66,152,138.08 - Step 4: Simplify right side
142,991,420.80x = 14,177,671,300,570,138 - Step 5: Solve for x
x = 14,177,671,300,570,138/142,991,420.80 - Step 6: Final answer
x = 99,150,503.02
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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.