Finding the Fourth Proportional to 99,778,893.60, 149,724,327.60 and 42,261,376.80
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Solution
The fourth proportional to 99,778,893.60, 149,724,327.60 and 42,261,376.80 is: 63,415,778.59
Step by Step Solution
- Step 1: Write the proportion equation
99,778,893.60 : 149,724,327.60 = 42,261,376.80 : x - Step 2: Convert to fraction form
99,778,893.60/149,724,327.60 = 42,261,376.80/x - Step 3: Cross multiply
99,778,893.60x = 149,724,327.60 × 42,261,376.80 - Step 4: Simplify right side
99,778,893.60x = 6,327,556,224,830,239 - Step 5: Solve for x
x = 6,327,556,224,830,239/99,778,893.60 - Step 6: Final answer
x = 63,415,778.59
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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.