Finding the Fourth Proportional to 47,865,581.60, 71,811,202.80 and 19,131,900.80
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Solution
The fourth proportional to 47,865,581.60, 71,811,202.80 and 19,131,900.80 is: 28,702,979.52
Step by Step Solution
- Step 1: Write the proportion equation
47,865,581.60 : 71,811,202.80 = 19,131,900.80 : x - Step 2: Convert to fraction form
47,865,581.60/71,811,202.80 = 19,131,900.80/x - Step 3: Cross multiply
47,865,581.60x = 71,811,202.80 × 19,131,900.80 - Step 4: Simplify right side
47,865,581.60x = 1,373,884,808,298,282.25 - Step 5: Solve for x
x = 1,373,884,808,298,282.25/47,865,581.60 - Step 6: Final answer
x = 28,702,979.52
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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.