Finding the Fourth Proportional to 434,497,497.40, 651,746,246.10 and 386,124,556.60
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Solution
The fourth proportional to 434,497,497.40, 651,746,246.10 and 386,124,556.60 is: 579,186,834.90
Step by Step Solution
- Step 1: Write the proportion equation
434,497,497.40 : 651,746,246.10 = 386,124,556.60 : x - Step 2: Convert to fraction form
434,497,497.40/651,746,246.10 = 386,124,556.60/x - Step 3: Cross multiply
434,497,497.40x = 651,746,246.10 × 386,124,556.60 - Step 4: Simplify right side
434,497,497.40x = 251,655,230,291,076,992 - Step 5: Solve for x
x = 251,655,230,291,076,992/434,497,497.40 - Step 6: Final answer
x = 579,186,834.90
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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.