Finding the Fourth Proportional to 434,497,494.40, 651,746,241.60 and 386,124,553.60
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Solution
The fourth proportional to 434,497,494.40, 651,746,241.60 and 386,124,553.60 is: 579,186,830.40
Step by Step Solution
- Step 1: Write the proportion equation
434,497,494.40 : 651,746,241.60 = 386,124,553.60 : x - Step 2: Convert to fraction form
434,497,494.40/651,746,241.60 = 386,124,553.60/x - Step 3: Cross multiply
434,497,494.40x = 651,746,241.60 × 386,124,553.60 - Step 4: Simplify right side
434,497,494.40x = 251,655,226,598,277,760 - Step 5: Solve for x
x = 251,655,226,598,277,760/434,497,494.40 - Step 6: Final answer
x = 579,186,830.40
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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.