Finding the Fourth Proportional to 66,410,316.72, 99,475,971.84 and 42,136,749.09
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Solution
The fourth proportional to 66,410,316.72, 99,475,971.84 and 42,136,749.09 is: 63,116,610.08
Step by Step Solution
- Step 1: Write the proportion equation
66,410,316.72 : 99,475,971.84 = 42,136,749.09 : x - Step 2: Convert to fraction form
66,410,316.72/99,475,971.84 = 42,136,749.09/x - Step 3: Cross multiply
66,410,316.72x = 99,475,971.84 × 42,136,749.09 - Step 4: Simplify right side
66,410,316.72x = 4,191,594,065,905,986 - Step 5: Solve for x
x = 4,191,594,065,905,986/66,410,316.72 - Step 6: Final answer
x = 63,116,610.08
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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.