Finding the Fourth Proportional to 487,799,994.15, 673,164,638.06 and 264,781,530.99
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Solution
The fourth proportional to 487,799,994.15, 673,164,638.06 and 264,781,530.99 is: 365,398,863.49
Step by Step Solution
- Step 1: Write the proportion equation
487,799,994.15 : 673,164,638.06 = 264,781,530.99 : x - Step 2: Convert to fraction form
487,799,994.15/673,164,638.06 = 264,781,530.99/x - Step 3: Cross multiply
487,799,994.15x = 673,164,638.06 × 264,781,530.99 - Step 4: Simplify right side
487,799,994.15x = 178,241,563,473,856,000 - Step 5: Solve for x
x = 178,241,563,473,856,000/487,799,994.15 - Step 6: Final answer
x = 365,398,863.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.