Finding the Fourth Proportional to 61,205,739.80, 91,808,609.70 and 47,335,129.70
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Solution
The fourth proportional to 61,205,739.80, 91,808,609.70 and 47,335,129.70 is: 71,002,694.55
Step by Step Solution
- Step 1: Write the proportion equation
61,205,739.80 : 91,808,609.70 = 47,335,129.70 : x - Step 2: Convert to fraction form
61,205,739.80/91,808,609.70 = 47,335,129.70/x - Step 3: Cross multiply
61,205,739.80x = 91,808,609.70 × 47,335,129.70 - Step 4: Simplify right side
61,205,739.80x = 4,345,772,447,726,178.50 - Step 5: Solve for x
x = 4,345,772,447,726,178.50/61,205,739.80 - Step 6: Final answer
x = 71,002,694.55
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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.