Finding the Fourth Proportional to 354,976,823.80, 532,465,235.70 and 295,257,143.80
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Solution
The fourth proportional to 354,976,823.80, 532,465,235.70 and 295,257,143.80 is: 442,885,715.70
Step by Step Solution
- Step 1: Write the proportion equation
354,976,823.80 : 532,465,235.70 = 295,257,143.80 : x - Step 2: Convert to fraction form
354,976,823.80/532,465,235.70 = 295,257,143.80/x - Step 3: Cross multiply
354,976,823.80x = 532,465,235.70 × 295,257,143.80 - Step 4: Simplify right side
354,976,823.80x = 157,214,164,665,575,808 - Step 5: Solve for x
x = 157,214,164,665,575,808/354,976,823.80 - Step 6: Final answer
x = 442,885,715.70
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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.