Finding the Fourth Proportional to 664,848,745.20, 997,273,117.80 and 655,778,818.80
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Solution
The fourth proportional to 664,848,745.20, 997,273,117.80 and 655,778,818.80 is: 983,668,228.20
Step by Step Solution
- Step 1: Write the proportion equation
664,848,745.20 : 997,273,117.80 = 655,778,818.80 : x - Step 2: Convert to fraction form
664,848,745.20/997,273,117.80 = 655,778,818.80/x - Step 3: Cross multiply
664,848,745.20x = 997,273,117.80 × 655,778,818.80 - Step 4: Simplify right side
664,848,745.20x = 653,990,587,211,877,120 - Step 5: Solve for x
x = 653,990,587,211,877,120/664,848,745.20 - Step 6: Final answer
x = 983,668,228.20
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1.5x scale
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.