Finding the Fourth Proportional to 199,640,756.40, 298,863,937.80 and 187,829,530.80
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Solution
The fourth proportional to 199,640,756.40, 298,863,937.80 and 187,829,530.80 is: 281,182,430.99
Step by Step Solution
- Step 1: Write the proportion equation
199,640,756.40 : 298,863,937.80 = 187,829,530.80 : x - Step 2: Convert to fraction form
199,640,756.40/298,863,937.80 = 187,829,530.80/x - Step 3: Cross multiply
199,640,756.40x = 298,863,937.80 × 187,829,530.80 - Step 4: Simplify right side
199,640,756.40x = 56,135,473,210,014,392 - Step 5: Solve for x
x = 56,135,473,210,014,392/199,640,756.40 - Step 6: Final answer
x = 281,182,430.99
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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.