Finding the Fourth Proportional to 66,430,268.70, 99,645,403.05 and 49,211,580.30
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Solution
The fourth proportional to 66,430,268.70, 99,645,403.05 and 49,211,580.30 is: 73,817,370.45
Step by Step Solution
- Step 1: Write the proportion equation
66,430,268.70 : 99,645,403.05 = 49,211,580.30 : x - Step 2: Convert to fraction form
66,430,268.70/99,645,403.05 = 49,211,580.30/x - Step 3: Cross multiply
66,430,268.70x = 99,645,403.05 × 49,211,580.30 - Step 4: Simplify right side
66,430,268.70x = 4,903,707,753,720,939 - Step 5: Solve for x
x = 4,903,707,753,720,939/66,430,268.70 - Step 6: Final answer
x = 73,817,370.45
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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.