Finding the Fourth Proportional to 192,484,811.20, 288,727,216.80 and 115,957,307.20
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Solution
The fourth proportional to 192,484,811.20, 288,727,216.80 and 115,957,307.20 is: 173,935,960.80
Step by Step Solution
- Step 1: Write the proportion equation
192,484,811.20 : 288,727,216.80 = 115,957,307.20 : x - Step 2: Convert to fraction form
192,484,811.20/288,727,216.80 = 115,957,307.20/x - Step 3: Cross multiply
192,484,811.20x = 288,727,216.80 × 115,957,307.20 - Step 4: Simplify right side
192,484,811.20x = 33,480,030,575,478,604 - Step 5: Solve for x
x = 33,480,030,575,478,604/192,484,811.20 - Step 6: Final answer
x = 173,935,960.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.