Finding the Fourth Proportional to 42,139,372.97, 63,214,119.63 and 14,840,019.72
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Solution
The fourth proportional to 42,139,372.97, 63,214,119.63 and 14,840,019.72 is: 22,261,811.60
Step by Step Solution
- Step 1: Write the proportion equation
42,139,372.97 : 63,214,119.63 = 14,840,019.72 : x - Step 2: Convert to fraction form
42,139,372.97/63,214,119.63 = 14,840,019.72/x - Step 3: Cross multiply
42,139,372.97x = 63,214,119.63 × 14,840,019.72 - Step 4: Simplify right side
42,139,372.97x = 938,098,781,891,639.12 - Step 5: Solve for x
x = 938,098,781,891,639.12/42,139,372.97 - Step 6: Final answer
x = 22,261,811.60
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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.