Finding the Fourth Proportional to 74,025,871.74, 102,158,895.93 and 40,986,121.59
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Solution
The fourth proportional to 74,025,871.74, 102,158,895.93 and 40,986,121.59 is: 56,562,615.63
Step by Step Solution
- Step 1: Write the proportion equation
74,025,871.74 : 102,158,895.93 = 40,986,121.59 : x - Step 2: Convert to fraction form
74,025,871.74/102,158,895.93 = 40,986,121.59/x - Step 3: Cross multiply
74,025,871.74x = 102,158,895.93 × 40,986,121.59 - Step 4: Simplify right side
74,025,871.74x = 4,187,096,930,087,137 - Step 5: Solve for x
x = 4,187,096,930,087,137/74,025,871.74 - Step 6: Final answer
x = 56,562,615.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.