Finding the Fourth Proportional to 42,052,515.40, 63,106,985.40 and 14,758,755.40
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Solution
The fourth proportional to 42,052,515.40, 63,106,985.40 and 14,758,755.40 is: 22,148,034.49
Step by Step Solution
- Step 1: Write the proportion equation
42,052,515.40 : 63,106,985.40 = 14,758,755.40 : x - Step 2: Convert to fraction form
42,052,515.40/63,106,985.40 = 14,758,755.40/x - Step 3: Cross multiply
42,052,515.40x = 63,106,985.40 × 14,758,755.40 - Step 4: Simplify right side
42,052,515.40x = 931,380,561,549,971.12 - Step 5: Solve for x
x = 931,380,561,549,971.12/42,052,515.40 - Step 6: Final answer
x = 22,148,034.49
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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.