Finding the Fourth Proportional to 6,447,326,346.20, 9,654,865,205.70 and 5,157,381,258.20
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Solution
The fourth proportional to 6,447,326,346.20, 9,654,865,205.70 and 5,157,381,258.20 is: 7,723,173,636.41
Step by Step Solution
- Step 1: Write the proportion equation
6,447,326,346.20 : 9,654,865,205.70 = 5,157,381,258.20 : x - Step 2: Convert to fraction form
6,447,326,346.20/9,654,865,205.70 = 5,157,381,258.20/x - Step 3: Cross multiply
6,447,326,346.20x = 9,654,865,205.70 × 5,157,381,258.20 - Step 4: Simplify right side
6,447,326,346.20x = 49,793,820,862,324,473,856 - Step 5: Solve for x
x = 49,793,820,862,324,473,856/6,447,326,346.20 - Step 6: Final answer
x = 7,723,173,636.41
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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.