Finding the Fourth Proportional to 451,823,702.79, 674,692,966.34 and 368,989,778.69
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Solution
The fourth proportional to 451,823,702.79, 674,692,966.34 and 368,989,778.69 is: 550,999,885.12
Step by Step Solution
- Step 1: Write the proportion equation
451,823,702.79 : 674,692,966.34 = 368,989,778.69 : x - Step 2: Convert to fraction form
451,823,702.79/674,692,966.34 = 368,989,778.69/x - Step 3: Cross multiply
451,823,702.79x = 674,692,966.34 × 368,989,778.69 - Step 4: Simplify right side
451,823,702.79x = 248,954,808,333,496,224 - Step 5: Solve for x
x = 248,954,808,333,496,224/451,823,702.79 - Step 6: Final answer
x = 550,999,885.12
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.