Finding the Fourth Proportional to 323,712,276.20, 485,568,414.30 and 286,298,829.80
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Solution
The fourth proportional to 323,712,276.20, 485,568,414.30 and 286,298,829.80 is: 429,448,244.70
Step by Step Solution
- Step 1: Write the proportion equation
323,712,276.20 : 485,568,414.30 = 286,298,829.80 : x - Step 2: Convert to fraction form
323,712,276.20/485,568,414.30 = 286,298,829.80/x - Step 3: Cross multiply
323,712,276.20x = 485,568,414.30 × 286,298,829.80 - Step 4: Simplify right side
323,712,276.20x = 139,017,668,801,931,600 - Step 5: Solve for x
x = 139,017,668,801,931,600/323,712,276.20 - Step 6: Final answer
x = 429,448,244.70
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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.