Finding the Fourth Proportional to 66,828,141.42, 100,242,297.99 and 18,306,421.98
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Solution
The fourth proportional to 66,828,141.42, 100,242,297.99 and 18,306,421.98 is: 27,459,656.49
Step by Step Solution
- Step 1: Write the proportion equation
66,828,141.42 : 100,242,297.99 = 18,306,421.98 : x - Step 2: Convert to fraction form
66,828,141.42/100,242,297.99 = 18,306,421.98/x - Step 3: Cross multiply
66,828,141.42x = 100,242,297.99 × 18,306,421.98 - Step 4: Simplify right side
66,828,141.42x = 1,835,077,807,249,845.75 - Step 5: Solve for x
x = 1,835,077,807,249,845.75/66,828,141.42 - Step 6: Final answer
x = 27,459,656.49
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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.